This document analyzes the performance of OFDM systems in the presence of Doppler effect. It derives a new expression for total carrier frequency offset that includes both static offset from local oscillator imperfections and dynamic offset from Doppler effect. It then examines inter-carrier interference and carrier-to-interference ratio (CIR) as a function of speed and angle, showing that CIR decreases with increasing speed and for certain angle ranges, with maximum CIR when the Doppler effect is canceled at 90 degrees. Bit error rate performance is evaluated through Monte Carlo simulation.
Evidence Of Bimodal Crystallite Size Distribution In Microcrystalline Silico...Sanjay Ram
It is known that there is a bimodal size distribution in microcrystalline silicon. How can the deconvolution of the Raman spectra be done with incorporation of a bimodal CSD to obtain more accurate and physical picture of the microstructure in this material?
Lecture 2 - Intellectual property rights: the role of patents in innovationUNU.MERIT
1. The document discusses the economics of patents and how they can be designed to balance incentives for innovation with allowing useful spillovers.
2. It analyzes optimal patent length, breadth, and height using economic models. Longer patents create more profits but less consumer welfare. Broader patents sacrifice consumer surplus for small profits.
3. Patents should be designed prudently to avoid locking out relevant implications for others and leave room for spillovers, as knowledge has a systems nature and inventions build on each other.
Lecture 3 - The microeconomic foundations of the economic theory of innovationUNU.MERIT
This document discusses research on the relationship between competition and R&D expenditures. It covers several hypotheses and models, including that monopoly power can encourage R&D, incentives for innovation differ between monopolists and competitive firms, and examples like the development of steam engines. The document also discusses common pool problems that can arise in patent races and introduces the Nelson & Winter model, which generates different "technology regimes" based on the knowledge base that influence market structure.
This presentation provides an introduction to Common Reflection Surface (CRS) processing. It outlines the methodology of CRS, including its use of three parameters (RNIP, RN, and R) to model subsurface reflectors rather than a single NMO velocity. Case studies are presented showing how CRS can improve data quality in both time and depth processing through techniques like CRS tomography. Current developments with CRS gathers and its applications in reservoir description are also mentioned.
CRS (constant reflection surface) processing provides several advantages over standard processing methods. [1] CRS uses three parameters (dip, curvature, location) rather than one parameter (velocity) to model subsurface reflectors, allowing for improved imaging of complex geology. [2] Case studies demonstrate how CRS can improve signal-to-noise ratio and lateral resolution for difficult datasets with irregular acquisition patterns. [3] CRS tomography creates smooth velocity models from CRS attributes that are well-suited for depth imaging techniques like pre-stack depth migration (PreSDM).
ZVxPlus Application: Transistor Characterization, Reliability and Model Verif...NMDG NV
The document describes characterization and reliability testing of the EPA120B-100P transistor using the ZVxPlus application. It outlines the measurement setup and calibration process, and demonstrates DC and RF transistor characterization through IV curves, S-parameters, and time domain signals. Advanced displays show dynamic load lines and small-signal parameters. Measurements are exported to ADS for model verification.
This document analyzes the performance of OFDM systems in the presence of Doppler effect. It derives a new expression for total carrier frequency offset that includes both static offset from local oscillator imperfections and dynamic offset from Doppler effect. It then examines inter-carrier interference and carrier-to-interference ratio (CIR) as a function of speed and angle, showing that CIR decreases with increasing speed and for certain angle ranges, with maximum CIR when the Doppler effect is canceled at 90 degrees. Bit error rate performance is evaluated through Monte Carlo simulation.
Evidence Of Bimodal Crystallite Size Distribution In Microcrystalline Silico...Sanjay Ram
It is known that there is a bimodal size distribution in microcrystalline silicon. How can the deconvolution of the Raman spectra be done with incorporation of a bimodal CSD to obtain more accurate and physical picture of the microstructure in this material?
Lecture 2 - Intellectual property rights: the role of patents in innovationUNU.MERIT
1. The document discusses the economics of patents and how they can be designed to balance incentives for innovation with allowing useful spillovers.
2. It analyzes optimal patent length, breadth, and height using economic models. Longer patents create more profits but less consumer welfare. Broader patents sacrifice consumer surplus for small profits.
3. Patents should be designed prudently to avoid locking out relevant implications for others and leave room for spillovers, as knowledge has a systems nature and inventions build on each other.
Lecture 3 - The microeconomic foundations of the economic theory of innovationUNU.MERIT
This document discusses research on the relationship between competition and R&D expenditures. It covers several hypotheses and models, including that monopoly power can encourage R&D, incentives for innovation differ between monopolists and competitive firms, and examples like the development of steam engines. The document also discusses common pool problems that can arise in patent races and introduces the Nelson & Winter model, which generates different "technology regimes" based on the knowledge base that influence market structure.
This presentation provides an introduction to Common Reflection Surface (CRS) processing. It outlines the methodology of CRS, including its use of three parameters (RNIP, RN, and R) to model subsurface reflectors rather than a single NMO velocity. Case studies are presented showing how CRS can improve data quality in both time and depth processing through techniques like CRS tomography. Current developments with CRS gathers and its applications in reservoir description are also mentioned.
CRS (constant reflection surface) processing provides several advantages over standard processing methods. [1] CRS uses three parameters (dip, curvature, location) rather than one parameter (velocity) to model subsurface reflectors, allowing for improved imaging of complex geology. [2] Case studies demonstrate how CRS can improve signal-to-noise ratio and lateral resolution for difficult datasets with irregular acquisition patterns. [3] CRS tomography creates smooth velocity models from CRS attributes that are well-suited for depth imaging techniques like pre-stack depth migration (PreSDM).
ZVxPlus Application: Transistor Characterization, Reliability and Model Verif...NMDG NV
The document describes characterization and reliability testing of the EPA120B-100P transistor using the ZVxPlus application. It outlines the measurement setup and calibration process, and demonstrates DC and RF transistor characterization through IV curves, S-parameters, and time domain signals. Advanced displays show dynamic load lines and small-signal parameters. Measurements are exported to ADS for model verification.
The document discusses the first results from experiments using Pol-InSAR techniques with TanDEM-X data at X-band. It explores different TanDEM-X acquisition modes and presents initial coherence and interferometric results over various forest sites. The findings demonstrate the potential of Pol-InSAR at X-band to characterize forest structure by analyzing volume decorrelation effects and phase center location sensitivity. Ongoing work involves understanding and modeling high-resolution X-band Pol-InSAR data to extract physical parameters and generate forest information products.
Variation of Electrical Transport Parameters with Large Grain Fraction in Hig...Sanjay Ram
The electrical transport and its correlation with the microstructural properties in single phase microcrystalline silicon may be very different from the transport in microcrystalline silicon with a mixed phase of amorphous silicon. We have shown that the transport in single phase microcrystalline silicon may be predicted by the large grain fraction.
Plans2012 Presentation: Angular PDFs and FootSLAMsusannakaiser
This document discusses using map-based angular probability density functions (PDFs) as a prior map for the FootSLAM indoor navigation system. It describes how angular PDFs are generated from floor plan waypoints using a diffusion algorithm and mapped to FootSLAM's hexagon grid. Experimental results show that using a complete prior map leads to faster map convergence and better accuracy compared to not using a prior map. The influence of the prior map can be adjusted via a strengthening factor. Prior maps that are incomplete or contain errors still provide benefits over no prior map.
Vortex Dissipation Due to Airfoil-Vortex InteractionMasahiro Kanazaki
1) A numerical simulation was conducted of airfoil-vortex interaction (AVI) for two airfoils to improve a hybrid method for predicting blade-vortex interaction (BVI) noise.
2) The simulation estimated the change in vortex center location and circulation due to sequential AVI. It found that the original vortex was decelerated and moved upward due to induced counter-rotating vortices from the first airfoil.
3) Sound pressure fluctuations were also estimated, finding that the pressure level after the second AVI was lower than after the first due to the increased miss-distance between the vortex and airfoil. This simulation provided data to modify the prescribed wake model used in the hybrid
Numerical Simulation: Flight Dynamic Stability Analysis Using Unstructured Ba...Masahiro Kanazaki
The document summarizes a numerical simulation of flight dynamic stability analysis using an unstructured Navier-Stokes solver. It investigates the ability of computational fluid dynamics (CFD) to analyze dynamic stability at supersonic flight conditions. The study uses the Standard Dynamics Model configuration and estimates aerodynamic derivatives from computational results to analyze stiffness, damping, and unsteady oscillation characteristics. Grid dependency is also examined using coarse, medium, and fine meshes.
ESS-Bilbao Initiative Workshop. Beam Dynamics Codes: Availability, Sophistica...ESS BILBAO
Beam Dynamics Codes: Availability, Sophistication, Limitations. P.N. Ostroumov and B. Mustapha Argonne National Laboratory, J.-P. Carneiro Fermi National Accelerator Laboratory
This document discusses signal coupling in multi-conductor highly inhomogeneous HF environments like multi-strip timing RPC detectors. It summarizes simulations and measurements of cross-talk and time resolution in multi-strip RPC detectors of various lengths from 20cm to 100cm. Optimization techniques like differential signaling and shielding were able to reduce cross-talk to below 3% and achieve cluster sizes of around 1, with a modest degradation of time resolution to 110ps mainly affecting the first neighbor strips. Further optimization may still be possible.
Here are the key steps to stabilize the boost converter control loop:
1. Select a crossover frequency fc lower than the maximum stable frequency.
2. Inject an AC signal and measure the open-loop gain without compensation.
3. Select compensator values R1, R2, C1, C2, C3 to provide sufficient phase margin at fc.
4. Simulate the closed-loop response and verify stability over operating conditions. Adjust compensator as needed.
The compensator provides poles and zeros to shape the open-loop response for stability. Proper selection of fc and compensator component values based on the plant transfer function H(s) is critical for robust performance.
This talk presents an extensive experimental study that shows that a good general-purpose allocator is better than almost all commonly-used custom allocators, with one exception: regions (a.k.a., pools, arenas, zones). However, it shows that regions consume much more memory than necessary. The talk then introduces reaps (regions + heaps), which combine the flexibility and space efficiency of heaps with the performance of regions.
Here are the key steps in the simulation example:
1. Set PWM controller parameters: FOSC, VREF, VP
2. Set output voltage: Rupper, Rlower
3. Select inductor: L for CCM operation
4. Select capacitor: C, ESR for ripple requirements
5. Extract compensator parameters: C1, C2, R1, R2
6. Simulate and verify switching waveforms, efficiency
The example shows designing, simulating, and verifying the operation of the boost converter to meet the given specifications.
This document discusses using multi-baseline Pol-InSAR at L-band to estimate vertical forest structure and biomass mapping globally. It presents a model for volume coherence over height that can be inverted to retrieve height. It tests the method on a temperate forest site in Traunstein, Germany between 2003 and 2008, achieving height estimates that match a digital elevation model and show growth over time.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
The document discusses electrical characterization techniques for III-V semiconductor interfaces, including the conductance method, Terman method, and Berglund method. It describes how interface states can induce additional capacitance and loss in metal-oxide-semiconductor structures. The conductance method measures this additional capacitance from interface states near the Fermi level whose characteristic frequency matches the measurement frequency. However, this technique is limited by the semiconductor bandgap size and can overestimate interface states. The document also discusses challenges with the Terman high frequency capacitance-voltage method for these materials.
This document presents a new approach to analyzing the robustness of the relative gain array (RGA) for uncertain systems. It derives bounds on the RGA elements for a 2x2 uncertain system and provides sufficient conditions to determine if the plant remains non-singular over the uncertainty set. An example is provided to illustrate the bounds on the magnitude and phase of the RGA in the frequency domain for an uncertain system. The analysis of the RGA's robustness to uncertainties can help assess decisions made based on the nominal plant model.
Wind Measurement Strategies to Optimize Lidar Return on InvestmentRenewable NRG Systems
1. The document studies various wind measurement strategies combining met masts and lidars to optimize reducing uncertainties in wind resource assessment and annual energy yield estimation for wind farm projects.
2. Several measurement system combinations are modeled, including different heights and durations of met mast deployment and multiple lidar deployments both fixed and seasonally moved.
3. The results show that strategies using lidars away from met masts and with seasonal movement of lidars provide the highest reduction in estimated annual energy yield uncertainty and result in the largest decreases in required equity investment and increases in project internal rate of return.
A Closed-Form Expression for Queuing Delay in Rayleigh Fading Channels Using ...Giacomo Verticale
This document is a research paper that uses stochastic network calculus to model a wireless channel subject to Rayleigh fading and obtain an approximate closed-form expression for the probability tail of queuing delay. The paper presents the Markovian model of the Rayleigh fading channel, discusses the spectral gap in Markov chains and stochastic network calculus. It then derives the service envelope of the fading channel and compares the queuing delay expression to simulation results, finding a good match between the analysis and simulations. The conclusion is that stochastic network calculus can be used to successfully study wireless channels.
The document is illegible and appears to be random text with no coherent meaning or message. It consists of repeated phrases and words with no context or structure. No meaningful information can be summarized from this document.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help alleviate symptoms of mental illness and boost overall mental well-being.
Este documento presenta el sílabo para el curso de Energía y Medio Ambiente. El curso dura 18 semanas y cubre temas como ecosistemas, impactos ambientales de la energía, contaminación atmosférica, del suelo y residuos sólidos. Los estudiantes serán evaluados a través de exámenes parciales y finales, así como actividades obligatorias individuales. El curso tiene el objetivo de que los estudiantes puedan explicar la problemática ambiental causada por la generación, transporte y uso de energía, y estud
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help regulate emotions and stress levels.
The document discusses the first results from experiments using Pol-InSAR techniques with TanDEM-X data at X-band. It explores different TanDEM-X acquisition modes and presents initial coherence and interferometric results over various forest sites. The findings demonstrate the potential of Pol-InSAR at X-band to characterize forest structure by analyzing volume decorrelation effects and phase center location sensitivity. Ongoing work involves understanding and modeling high-resolution X-band Pol-InSAR data to extract physical parameters and generate forest information products.
Variation of Electrical Transport Parameters with Large Grain Fraction in Hig...Sanjay Ram
The electrical transport and its correlation with the microstructural properties in single phase microcrystalline silicon may be very different from the transport in microcrystalline silicon with a mixed phase of amorphous silicon. We have shown that the transport in single phase microcrystalline silicon may be predicted by the large grain fraction.
Plans2012 Presentation: Angular PDFs and FootSLAMsusannakaiser
This document discusses using map-based angular probability density functions (PDFs) as a prior map for the FootSLAM indoor navigation system. It describes how angular PDFs are generated from floor plan waypoints using a diffusion algorithm and mapped to FootSLAM's hexagon grid. Experimental results show that using a complete prior map leads to faster map convergence and better accuracy compared to not using a prior map. The influence of the prior map can be adjusted via a strengthening factor. Prior maps that are incomplete or contain errors still provide benefits over no prior map.
Vortex Dissipation Due to Airfoil-Vortex InteractionMasahiro Kanazaki
1) A numerical simulation was conducted of airfoil-vortex interaction (AVI) for two airfoils to improve a hybrid method for predicting blade-vortex interaction (BVI) noise.
2) The simulation estimated the change in vortex center location and circulation due to sequential AVI. It found that the original vortex was decelerated and moved upward due to induced counter-rotating vortices from the first airfoil.
3) Sound pressure fluctuations were also estimated, finding that the pressure level after the second AVI was lower than after the first due to the increased miss-distance between the vortex and airfoil. This simulation provided data to modify the prescribed wake model used in the hybrid
Numerical Simulation: Flight Dynamic Stability Analysis Using Unstructured Ba...Masahiro Kanazaki
The document summarizes a numerical simulation of flight dynamic stability analysis using an unstructured Navier-Stokes solver. It investigates the ability of computational fluid dynamics (CFD) to analyze dynamic stability at supersonic flight conditions. The study uses the Standard Dynamics Model configuration and estimates aerodynamic derivatives from computational results to analyze stiffness, damping, and unsteady oscillation characteristics. Grid dependency is also examined using coarse, medium, and fine meshes.
ESS-Bilbao Initiative Workshop. Beam Dynamics Codes: Availability, Sophistica...ESS BILBAO
Beam Dynamics Codes: Availability, Sophistication, Limitations. P.N. Ostroumov and B. Mustapha Argonne National Laboratory, J.-P. Carneiro Fermi National Accelerator Laboratory
This document discusses signal coupling in multi-conductor highly inhomogeneous HF environments like multi-strip timing RPC detectors. It summarizes simulations and measurements of cross-talk and time resolution in multi-strip RPC detectors of various lengths from 20cm to 100cm. Optimization techniques like differential signaling and shielding were able to reduce cross-talk to below 3% and achieve cluster sizes of around 1, with a modest degradation of time resolution to 110ps mainly affecting the first neighbor strips. Further optimization may still be possible.
Here are the key steps to stabilize the boost converter control loop:
1. Select a crossover frequency fc lower than the maximum stable frequency.
2. Inject an AC signal and measure the open-loop gain without compensation.
3. Select compensator values R1, R2, C1, C2, C3 to provide sufficient phase margin at fc.
4. Simulate the closed-loop response and verify stability over operating conditions. Adjust compensator as needed.
The compensator provides poles and zeros to shape the open-loop response for stability. Proper selection of fc and compensator component values based on the plant transfer function H(s) is critical for robust performance.
This talk presents an extensive experimental study that shows that a good general-purpose allocator is better than almost all commonly-used custom allocators, with one exception: regions (a.k.a., pools, arenas, zones). However, it shows that regions consume much more memory than necessary. The talk then introduces reaps (regions + heaps), which combine the flexibility and space efficiency of heaps with the performance of regions.
Here are the key steps in the simulation example:
1. Set PWM controller parameters: FOSC, VREF, VP
2. Set output voltage: Rupper, Rlower
3. Select inductor: L for CCM operation
4. Select capacitor: C, ESR for ripple requirements
5. Extract compensator parameters: C1, C2, R1, R2
6. Simulate and verify switching waveforms, efficiency
The example shows designing, simulating, and verifying the operation of the boost converter to meet the given specifications.
This document discusses using multi-baseline Pol-InSAR at L-band to estimate vertical forest structure and biomass mapping globally. It presents a model for volume coherence over height that can be inverted to retrieve height. It tests the method on a temperate forest site in Traunstein, Germany between 2003 and 2008, achieving height estimates that match a digital elevation model and show growth over time.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
The document discusses electrical characterization techniques for III-V semiconductor interfaces, including the conductance method, Terman method, and Berglund method. It describes how interface states can induce additional capacitance and loss in metal-oxide-semiconductor structures. The conductance method measures this additional capacitance from interface states near the Fermi level whose characteristic frequency matches the measurement frequency. However, this technique is limited by the semiconductor bandgap size and can overestimate interface states. The document also discusses challenges with the Terman high frequency capacitance-voltage method for these materials.
This document presents a new approach to analyzing the robustness of the relative gain array (RGA) for uncertain systems. It derives bounds on the RGA elements for a 2x2 uncertain system and provides sufficient conditions to determine if the plant remains non-singular over the uncertainty set. An example is provided to illustrate the bounds on the magnitude and phase of the RGA in the frequency domain for an uncertain system. The analysis of the RGA's robustness to uncertainties can help assess decisions made based on the nominal plant model.
Wind Measurement Strategies to Optimize Lidar Return on InvestmentRenewable NRG Systems
1. The document studies various wind measurement strategies combining met masts and lidars to optimize reducing uncertainties in wind resource assessment and annual energy yield estimation for wind farm projects.
2. Several measurement system combinations are modeled, including different heights and durations of met mast deployment and multiple lidar deployments both fixed and seasonally moved.
3. The results show that strategies using lidars away from met masts and with seasonal movement of lidars provide the highest reduction in estimated annual energy yield uncertainty and result in the largest decreases in required equity investment and increases in project internal rate of return.
A Closed-Form Expression for Queuing Delay in Rayleigh Fading Channels Using ...Giacomo Verticale
This document is a research paper that uses stochastic network calculus to model a wireless channel subject to Rayleigh fading and obtain an approximate closed-form expression for the probability tail of queuing delay. The paper presents the Markovian model of the Rayleigh fading channel, discusses the spectral gap in Markov chains and stochastic network calculus. It then derives the service envelope of the fading channel and compares the queuing delay expression to simulation results, finding a good match between the analysis and simulations. The conclusion is that stochastic network calculus can be used to successfully study wireless channels.
The document is illegible and appears to be random text with no coherent meaning or message. It consists of repeated phrases and words with no context or structure. No meaningful information can be summarized from this document.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help alleviate symptoms of mental illness and boost overall mental well-being.
Este documento presenta el sílabo para el curso de Energía y Medio Ambiente. El curso dura 18 semanas y cubre temas como ecosistemas, impactos ambientales de la energía, contaminación atmosférica, del suelo y residuos sólidos. Los estudiantes serán evaluados a través de exámenes parciales y finales, así como actividades obligatorias individuales. El curso tiene el objetivo de que los estudiantes puedan explicar la problemática ambiental causada por la generación, transporte y uso de energía, y estud
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow, releases endorphins, and promotes changes in the brain which help regulate emotions and stress levels.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Command Query Responsibility Separation doesn’t only simplify your code—it simplifies your thought process in all kinds of areas. In this session we will look through the benefits of CQRS for data persistence, performance, supportability and testing. We will also look at the way that these concepts allow a team to organize around a design and the clarity that CQRS can help provide.
- Employee Self-Service (ESS) allows employees to access and manage their own HR data through an internet portal. This standardized HR processes and reduced workload for HR departments.
- The ESS portal provides a single access point for various HR applications like benefits management, payroll, training enrollment, and skills profiles. Employees can personalize their portal experience.
- Key ESS applications include viewing and updating personal information, managing skills and qualifications, completing performance reviews, setting objectives and development plans, and enrolling in training courses.
This document summarizes key aspects of MOSFET transistor operation:
1) It describes the Shockley MOSFET model and its ideal characteristics in cutoff, linear, and saturation regions.
2) It discusses non-ideal effects such as velocity saturation at high fields, subthreshold leakage, junction and tunneling leakage.
3) Process variations that impact threshold voltage and other parameters are also covered.
This document discusses MOS transistor theory and operation. It covers:
- The three regions of MOS transistor operation: cut off, linear, and saturation
- How to calculate drain current based on gate voltage, threshold voltage, and drain voltage
- In linear mode, drain current is proportional to drain voltage
- In saturation mode, drain current becomes independent of drain voltage and is proportional to (gate voltage - threshold voltage) squared
- MOS transistors have gate, diffusion, and parasitic capacitances which vary based on applied voltages and device dimensions
This document discusses signal coupling in multi-conductor timing RPC detectors. It provides theoretical models and experimental results on pad, strip, double-strip, and multi-strip detector configurations. Simulations show cross-talk levels below 3% and cluster sizes of 1 can be achieved in optimized multi-strip designs, with time resolutions around 110 ps even for double hits. Experimental measurements on long multi-strip detectors validated the simulations. Further optimization may still improve performance.
This document discusses transmission line basics and provides an overview of key concepts. It introduces transmission line equivalent circuits and relevant equations. The document outlines the agenda, which includes discussing the transmission line concept, equivalent circuits, reflection diagrams, loading, termination methods, propagation delay, and simple return paths. It also discusses two viewpoints of transmission lines - steady state in the frequency domain and transient in the time domain.
Human: Thank you for the summary. Summarize the following document in 3 sentences or less:
[DOCUMENT]
Transmission Line Basics II - Class 6
Prerequisite Reading assignment: CH2
TARA SAIKUMAR
2
Real Computer Issues
The document discusses camera geometric parameters. There are intrinsic parameters that define the camera's optical characteristics and relate pixel coordinates to camera coordinates. There are also extrinsic parameters that define the camera's position and orientation relative to a world coordinate system. Together, intrinsic and extrinsic parameters are used to map 3D world points to their 2D pixel coordinates in an image. Common camera models include the perspective, weak perspective, and affine models.
System 1 and System 2 were basic early systems for image matching that used color and texture matching. Descriptor-based approaches like SIFT provided more invariance but not perfect invariance. Patch descriptors like SIFT were improved by making them more invariant to lighting changes like color and illumination shifts. The best performance came from combining descriptors with color invariance. Representing images as histograms of visual word occurrences captured patterns in local image patches and allowed measuring similarity between images. Large vocabularies of visual words provided more discriminative power but were costly to compute and store.
This document discusses techniques for reducing crosstalk and delay in VLSI interconnects. Crosstalk occurs when signals on neighboring wires capacitively couple, increasing delay and introducing noise. Wider wires and increased spacing reduce capacitance but increase area. Shielding critical wires and layer assignment can prevent coupling. Repeater insertion breaks long wires into shorter segments to reduce delay. Optimal repeater placement is equally spaced. Staggering wire layout and using differential signaling also mitigate crosstalk.
An automated and user-friendly optical tweezers for biomolecular investigat...Dr. Pranav Rathi
An automated optical tweezers system was designed and constructed for biomolecular investigations. Key aspects included automation and control of the tweezers, calibration of stiffness and sensitivity, and DNA sample preparation and experiments. Results showed DNA overstretching and unzipping experiments in both water and heavy water. Future work will focus on further automation and investigating DNA-protein interactions.
Signal Processing Algorithms for MIMO Radarsansam77
The document outlines Chun-Yang Chen's candidacy presentation on signal processing algorithms for MIMO radar. It begins with a review of MIMO radar and space-time adaptive processing (STAP). It then proposes a new MIMO-STAP method, including formulations, representations of clutter signals, and simulations. The conclusion discusses future work. Key points covered include MIMO radar transmitting orthogonal waveforms, using antenna arrays for beamforming to control directionality digitally, and adapting beams to interference.
Analysis Of Ofdm Parameters Using Cyclostationary Spectrum SensingOmer Ali
Defining Software Defined Radios, Cognitive Radios, the need for spectrum sensing and an insight on the Cyclostationary parameters that better help in feature detection in Cognitive Radios
The buck converter simulation example evaluates the switching waveforms and power switch voltages and currents. The specifications include a voltage output of 5V from an input voltage ranging from 7-40V. Inductor and capacitor values are selected to be 330uH and 330uF respectively. Simulation results are obtained for the switching waveforms, power switch voltages and currents using the average models with analysis directives to skip the breakpoints for a 10ms transient simulation.
Digital Marketing Trends in 2024 | Guide for Staying AheadWask
https://www.wask.co/ebooks/digital-marketing-trends-in-2024
Feeling lost in the digital marketing whirlwind of 2024? Technology is changing, consumer habits are evolving, and staying ahead of the curve feels like a never-ending pursuit. This e-book is your compass. Dive into actionable insights to handle the complexities of modern marketing. From hyper-personalization to the power of user-generated content, learn how to build long-term relationships with your audience and unlock the secrets to success in the ever-shifting digital landscape.
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
GraphRAG for Life Science to increase LLM accuracyTomaz Bratanic
GraphRAG for life science domain, where you retriever information from biomedical knowledge graphs using LLMs to increase the accuracy and performance of generated answers
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slackshyamraj55
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
Introduction of Cybersecurity with OSS at Code Europe 2024Hiroshi SHIBATA
I develop the Ruby programming language, RubyGems, and Bundler, which are package managers for Ruby. Today, I will introduce how to enhance the security of your application using open-source software (OSS) examples from Ruby and RubyGems.
The first topic is CVE (Common Vulnerabilities and Exposures). I have published CVEs many times. But what exactly is a CVE? I'll provide a basic understanding of CVEs and explain how to detect and handle vulnerabilities in OSS.
Next, let's discuss package managers. Package managers play a critical role in the OSS ecosystem. I'll explain how to manage library dependencies in your application.
I'll share insights into how the Ruby and RubyGems core team works to keep our ecosystem safe. By the end of this talk, you'll have a better understanding of how to safeguard your code.
Skybuffer SAM4U tool for SAP license adoptionTatiana Kojar
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
Taking AI to the Next Level in Manufacturing.pdfssuserfac0301
Read Taking AI to the Next Level in Manufacturing to gain insights on AI adoption in the manufacturing industry, such as:
1. How quickly AI is being implemented in manufacturing.
2. Which barriers stand in the way of AI adoption.
3. How data quality and governance form the backbone of AI.
4. Organizational processes and structures that may inhibit effective AI adoption.
6. Ideas and approaches to help build your organization's AI strategy.
leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...alexjohnson7307
Predictive maintenance is a proactive approach that anticipates equipment failures before they happen. At the forefront of this innovative strategy is Artificial Intelligence (AI), which brings unprecedented precision and efficiency. AI in predictive maintenance is transforming industries by reducing downtime, minimizing costs, and enhancing productivity.
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...Alex Pruden
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
8. Conventional stack
Normal move out equation is valid when only traces with equal
distance to shot and receiver are stacked within a CDP gather (red)
v
Receiver coordinate
v +
v
+ + +
v + +
v + ++ +
v +
v +
v +
+
Shot coordinate
CMP position
+ CMP traces
+ MF traces
9. MultiFocusing move-out correction
MultiFocusing time correction formula is valid for arbitrary
subsurface structure and for arbitrary source-receiver
configurations
2
(R )2 2 R X s sin Xs R (R )2 2 R X r sin Xr
2
R
V0 V0
X s and X r source and receiver positions
R ( RCRE , RCEE , ) are the radii of curvature of the wavefronts
( RCRE , X 0 , X s , X r , ) focusing parameter
is the emergence angle of the normal ray
10. 2D MultiFocusing – 3 parameters
CRE Radius & CEE Radius and emergence angle
X0 X0
β
β
О Rcee
Rcre
О
Rcre – radius of curvature of common reflection element
Rcee – radius of curvature of reflected surface
D
13. MultiFocusing stack
Normal move out equation is valid when only traces with equal distance to shot and receiver
are stacked within a CDP gather.
Nearby traces (green) can not be used but are utilized by our MultiFocusing™ methodology.
Receiver coordinate
v
v +
v + + +
v + + + + +
v + ++ + + + +
v ++ + + + + +
v + + + + ++ +
v + + + + + +
v
Shot coordinate
CMP position
+ CMP traces
+ MF traces
14. Velocity corridor picking
z0-Δz Wavefront X0 t0+Δt
Xi
z0
z0+Δz t0
X0 Xi
X t0-Δt
β
TIME
Rcre
DEPTH
Reflector
23. Enhanced MultiFocusing gathers
MF stacking surface
A
The MF sums the data along the green surface. The partial MF sums the data
around the specified point (point A). The partial MF is shown in red coincides
locally with the MF stacking surface.
42. Diffraction - definition
Obstacle
Wave front
A diffraction occurs when a wave encounters an obstacle.
In classical physics, the diffraction phenomenon is described as the apparent bending of waves
around small obstacles and the spreading out of waves past small openings.
Research suggests that this can be used to map fractures in the sub-surface from
seismic.
Real geological surfaces are not smooth and continuous. Looking at that image just emphasize that declaration. You can see faults, movements of interfaces, fractures of different scale, size and direction. It varies from 1 mm to several hundred meters. All of that have huge implication on the interpretation that we are doing during the exploration and production process. For example, knowing the direction of the fault or fractures play crucial role on the decision where to put a rig and how to do that.At the same time most of modern imaging methods including PSDM and PSTM are looking for smooth and continuous interfaces as part of its QC routine. Normally, small scale heterogeneities in the subsurface are detected by visual interpretation of the imaging(manual or automatic) which is indirect procedure. On other hand seismic wavefield contain direct information about those small scale objects. This information encrypted in Diffraction energy. So, in case we would find a way to detect and image that energy, we found the key for that code. This presentation presents a way how to do that using MultiFocusing method.So the motivation is pretty simple – the industry would like to know where the fractures, faults and salt flanks are.
reflector
Target orientedOptimization was done in order to be in reasonable timeframesDiffractivity clouds might indicate directly fractured and faulted zones.