Using Distortion Shaping Technique to Equalize ADC THD Performance Between ATEsPete Sarson, PH.D
This paper describes how using a phase switching technique can produce a low distortion signal from an Arbitrary Waveform Generator (AWG), and how this technique aligns the performance of the AWGs between testers, to evaluate the Total Harmonic Distortion (THD) performance of Analogue-to-Digital Converters (ADCs). Once a device has been characterized and correlated to the bench, the test engineer needs to start the release procedure in getting the device into a production ready state. One major issue that a test engineer faces is the difference in ADC THD performance test results using the same Automated Test Equipment (ATE) manufacture testers (AWGs). This paper will then show how the Gauge Repeatability and Reproducibility (GRR) between testers can be produced more easily allowing less stringent guard-bands to guarantee the performance of those devices that have performance criteria close to the device specification. This work will also go some way to proving previous papers’ works on distortion shaping testing to enhance the spectral performance of Arbitrary Waveform Generators.
Here is the presentation for Physical Layer Numericals from the book Andrew S. Tanenbaum (Computer Networks) and B A Forouzan ( Data Communication and Networking)
Using Distortion Shaping Technique to Equalize ADC THD Performance Between ATEsPete Sarson, PH.D
This paper describes how using a phase switching technique can produce a low distortion signal from an Arbitrary Waveform Generator (AWG), and how this technique aligns the performance of the AWGs between testers, to evaluate the Total Harmonic Distortion (THD) performance of Analogue-to-Digital Converters (ADCs). Once a device has been characterized and correlated to the bench, the test engineer needs to start the release procedure in getting the device into a production ready state. One major issue that a test engineer faces is the difference in ADC THD performance test results using the same Automated Test Equipment (ATE) manufacture testers (AWGs). This paper will then show how the Gauge Repeatability and Reproducibility (GRR) between testers can be produced more easily allowing less stringent guard-bands to guarantee the performance of those devices that have performance criteria close to the device specification. This work will also go some way to proving previous papers’ works on distortion shaping testing to enhance the spectral performance of Arbitrary Waveform Generators.
Here is the presentation for Physical Layer Numericals from the book Andrew S. Tanenbaum (Computer Networks) and B A Forouzan ( Data Communication and Networking)
A project to compile different methods in reserves estimation, namely Decline curve analysis, Material Balance, Rate transient Analysis, Series Model.
Applied for unconventional resources in which the difference from the conventional has been revealed.
Utilized KAPPA software thoroughly during the project.
A project to compile different methods in reserves estimation, namely Decline curve analysis, Material Balance, Rate transient Analysis, Series Model.
Applied for unconventional resources in which the difference from the conventional has been revealed.
Utilized KAPPA software thoroughly during the project.
A 420uW 100GHz-GBW CMOS Programmable-Gain Amplifier Leveraging the Cross-Coup...aiclab
Cross-coupled pairs are certainly among the most widely adopted fundamental circuits still in use today. This elegant device arrangement yields broadband positive feedback with high gain and low power, desirable features both in analog and digital applications [1]. Its small signal properties are consistently leveraged in oscillators, impedance negators and to boost gain of transconductors, while the bistable behavior is exploited in static latches and memory cells. Traditionally, the regeneration capability is leveraged in the design of sense amplifiers and high-speed comparators. In this work, we investigated the performance of the cross-coupled pair for discrete-time linear amplification and we show that its regeneration feature proves to be attractive for implementing Programmable-Gain Amplifiers (PGAs).
At low frequencies, we analyze transistor
using h-parameter. But for high frequency analysis the
h-parameter model is not suitable, because :-
(1) The value of h-parameters are not constant at high frequencies.
(2)At high frequency h-parameters becomes very complex
in nature
ePRTC in data centers - GNSS-backup-as-a-service (GBaaS)ADVA
Accurate timing is essential for effective operations in today’s data centers. An ePRTC synchronization source can offer the levels of precise synchronization required and remove vulnerability to GNSS outages. With the latest optical timing channel (OTC) technology, PTP-optimized optical transport can be used to distribute accurate timing all the way from the core of the network to the edge. What’s more, this can be delivered through GNSS/GPS-backup-as-a-service (GBaaS), whereby a specialized service provider operates a robust and reliable network, supplying precise and secure timing as a backup to highly vulnerable GNSS. In his ITSF 2022 presentation, Igal Pinhasov explored the value of utilizing GBaaS to provide accurate time for data centers using optical timing channel technology over long distances.
1. Estimate the Rain Fade for earth-to-satellite microwave Down links for the following frequency bands (LP-V, LP-H, CP):
a. C-band (4 GHz)
b. Ku-band (12 GHz)
c. Ka-band (20 GHz)
d. V-band (30 GHz)
2. Make a table and compare the estimated rain fades for above four bands with three different polarizations.
3. Design and estimate the downlink budget for the above frequency bands by highlighting the following two parameters:
C/N ratio during clear air
C/N ratio during rain
4. Predict the BER for QPSK modulation and above environmental conditions.
Joint Compensation of CIM3 and I/Q Imbalance in the Up-conversion Mixer with ...Ealwan Lee
Slides used during the lecture in RFIT-2017 on Aug 31, 2017(Seoul, Korea)
Refined Model for this work is presented at https://lnkd.in/gBhJmSRa
Corrective info about the errata in the paper of the proceeding is provided.
final camera-ready paper
http://ieeexplore.ieee.org/document/8048295/
pre-print
https://www.researchgate.net/publication/319973013_Joint_compensation_of_CIM3_and_IQ_imbalance_in_the_up-conversion_mixer_with_a_single_skew_matrix