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The document discusses analog transmission and digital-to-analog conversion. It defines analog transmission as conveying information using a continuous signal that varies proportionally to a variable, such as through amplitude or frequency modulation. Digital-to-analog conversion involves changing the characteristics of an analog signal based on digital data. There are four main types of digital-to-analog modulation: amplitude shift keying, frequency shift keying, phase shift keying, and quadrature amplitude modulation. The document also briefly discusses analog-to-analog modulation techniques including amplitude modulation, frequency modulation, and phase modulation. It concludes by inviting questions from the audience.
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Digital modulation
Digital modulation involves modulating an analog carrier signal with a discrete digital signal. The main digital modulation techniques are based on keying, including phase-shift keying (PSK) which uses a finite number of phases, frequency-shift keying (FSK) which uses a finite number of frequencies, and amplitude-shift keying (ASK) which uses a finite number of amplitudes. FSK transmits digital data by changing the discrete frequencies of a carrier wave, ASK represents digital data as variations in the amplitude of a carrier wave, and PSK conveys data by modulating the phase of a carrier wave.
presentationonanalogtransmission-210806163622.pptx
This document discusses different types of analog transmission and modulation techniques. It covers digital-to-analog conversion, which is the process of changing characteristics of an analog signal based on digital data. It also discusses four main types of digital-to-analog modulation: amplitude shift keying, frequency shift keying, phase shift keying and quadrature amplitude modulation. Finally, it covers three types of analog-to-analog modulation: amplitude modulation, frequency modulation, and phase modulation.
presentationonanalogtransmission-210806163622.pptx
This document discusses different types of analog transmission and modulation techniques. It covers digital-to-analog conversion, which is the process of changing characteristics of an analog signal based on digital data. It also discusses four main types of digital-to-analog modulation: amplitude shift keying, frequency shift keying, phase shift keying and quadrature amplitude modulation. Finally, it covers three types of analog-to-analog modulation: amplitude modulation, frequency modulation, and phase modulation.
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This document is a class note on the topic of digital modulation for the course Data Communication with course code CSE-313. It discusses three main types of digital modulation: Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK), and Phase Shift Keying (PSK). It provides details on how each modulation technique works, such as in ASK signals are transmitted when the input is 1 and in FSK 1 represents a high frequency and 0 represents a low frequency. It also describes the two types of PSK: Binary PSK and Quadrature PSK, noting Binary PSK uses phase reversals of 0 and 180 degrees while Quadrature PSK uses four phase reversals of 0, 90,
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This presentation contain each and every single information on the topic.
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This document discusses digital modulation techniques. It describes how digital modulation encodes digital signals into analog carrier signals by varying the amplitude, frequency, or phase. It explains the main digital modulation types: ASK, FSK, and PSK. ASK varies amplitude, FSK varies frequency, and PSK varies phase. BPSK and QPSK are described as phase shift keying techniques. QPSK encodes 2 bits per symbol by shifting the phase by 45 degree increments. The document provides examples and diagrams to illustrate digital modulation encoding.
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Presentation on Analog Transmission
This presentation was made on canva.
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To get the edit access please contact me on my LinkedIn---
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Digital modulation
Digital modulation involves modulating an analog carrier signal with a discrete digital signal. The main digital modulation techniques are based on keying, including phase-shift keying (PSK) which uses a finite number of phases, frequency-shift keying (FSK) which uses a finite number of frequencies, and amplitude-shift keying (ASK) which uses a finite number of amplitudes. FSK transmits digital data by changing the discrete frequencies of a carrier wave, ASK represents digital data as variations in the amplitude of a carrier wave, and PSK conveys data by modulating the phase of a carrier wave.
presentationonanalogtransmission-210806163622.pptx
This document discusses different types of analog transmission and modulation techniques. It covers digital-to-analog conversion, which is the process of changing characteristics of an analog signal based on digital data. It also discusses four main types of digital-to-analog modulation: amplitude shift keying, frequency shift keying, phase shift keying and quadrature amplitude modulation. Finally, it covers three types of analog-to-analog modulation: amplitude modulation, frequency modulation, and phase modulation.
presentationonanalogtransmission-210806163622.pptx
This document discusses different types of analog transmission and modulation techniques. It covers digital-to-analog conversion, which is the process of changing characteristics of an analog signal based on digital data. It also discusses four main types of digital-to-analog modulation: amplitude shift keying, frequency shift keying, phase shift keying and quadrature amplitude modulation. Finally, it covers three types of analog-to-analog modulation: amplitude modulation, frequency modulation, and phase modulation.
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- Coherent and non-coherent modulation techniques. Coherent requires a reference wave, non-coherent does not.
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原版一模一样【微信：741003700 】【美国密歇根州立大学毕业证学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
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- 1. Analog Transmission DAFFODIL INTERNATIONAL UNIVERSITY PRESENTED BY TEAM NIGHTQUEEN QUIST
- 2. TEAM : NIGHTQUEEN QUIST Team-members : Fuad Hasan 221-15-5645 MD.Shahin Miah 221-15-5646 Tasnim Jarin Labonno 221-15-5823 Shahriar Hossain Shoikot 221-15-5208 Atikul Islam Onik 221-15-5384
- 3. Presentation Overview THINGS WE'LL COVER • Analog Transmission • Digital-to-analog conversion • Analog-to-analog modulation
- 4. WHAT IS ANALOG TRANSMISSION? ANALOG TRANSMISSION
- 5. transmission is a transmission method of conveying voice, data, image, signal or video information using a continuous signal which varies in amplitude, phase, or some other property in ion to that of a variable. It could be the transfer of an analog source signal, using an analog modulation method such as Frequency modulation or Amplitude modulation, or no modulation at me textbooks also consider passband data transmission using a digital modulation methods such as ASK, PSK and QAM, i.e. a sinewave modulated by a digital bit-stream, as analog ssion and as an analog signal. Others define that as digital transmission and as a digital signal. Baseband data transmission using line codes, resulting in a pulse train, are always considered al transmission, although the source signal may be a digitized analog signal. Analog transmission is a transmission method of conveying voice, data, image, signal or video information using a continuous signal which varies in amplitude, phase, or some other property in proportion to that of a variable. It could be the transfer of an analog source signal, using an analog modulation method such as Frequency modulation or Amplitude modulation, or no modulation at all. Some textbooks also consider passband data transmission using a digital modulation methods such as ASK, PSK and QAM, i.e. a sinewave modulated by a digital bit-stream, as analog transmission and as an analog signal. Others define that as digital transmission and as a digital signal. Baseband data transmission using line codes, resulting in a pulse train, are always considered as digital transmission, although the source signal may be a digitized analog signal. ANALOG TRANSMISSION
- 6. Digital-to-analog conversion is the process of changing one of the characteristics signal based on the information in of an digital analog data. DIGITAL-TO-ANALOG CONVERSION
- 7. Phase Shift Keying (PSK) When a new binary symbol is encountered, the phase of the signal is altered. frequencies, f1 uses two and f2. Frequency Shift Keying (FSK) This technique is held; otherwise it is set to 0. Amplitude Shift Keying(ASK) When binary data represents digit 1, the amplitude TYPES OF DIGITAL- TO-ANALOG There are FOUR types of modulation Frequency Shift Keying (FSK) This technique uses two frequencies, f1 and f2.
- 8. • • BANDWIDTH FOR ASK: BASK OR OOK (ON-OFF KEYING) B = (1 + D) × S MODULATION OF DIGITAL DATA: ASK
- 9. MODULATION OF DIGITAL DATA: BINARY FSK BANDWIDTH FOR ASK: B = (1 + D) X S + 2ΔF
- 10. • BANDWIDTH : THE • LESS THAN THAT SAME AS BASK, B = (1 + D) X S FOR BFSK MODULATION OF DIGITAL DATA: PSK
- 11. MODULATION OF DIGITAL DATA: QAM AMPLITUDE MODULATION • QUADRATURE • COMBINATION • BANDWIDTH : OF ASK AND THE SAME AS PSK THAT REQUIRED FOR ASK AND PSK
- 13. Amplitude Modulation AM is normally implemented by using a simple multiplier Frequency Modulation FM is normally implemented by using a voltage-controlled oscillator Phase Modulation Phase modulation is practically similar to Frequency Modulation ANALOG-TO-ANALOG
- 16. Phase Modulation
- 17. Have You Any Question? FEEL FREE TO ASK.