. Assume a DM system that can only process analog information signals with a 3.5 kHz bandwidth. The system is subjected to a test signal with an amplitude of one volt and a frequency of 800 Hz and 64 KHz sampling rate. Compute: 1- The value of the step size to avoid slope overload. 2- The granular-noise power. 3- The signal-to-noise ratio.
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Solved in 4 steps
- There exist several methods to perform AM demodulation, consider a requirement where we intend to design an AM receiver which is characterized by less distortion and high SNR.Identify which type of AM demodulation scheme is mentioned in the above statement and explain one such demodulation with appropriate sketch.Compare and contrast different AM modulation and demodulation schemes in various aspectsExplore one interesting application area involving Amplitude Modulation with explanation and neat sketch.What is the main disadvantage of linear delta modulation? What is the solution for this problem? this question from digital communication course.How might one determine general-direction MTF (modulation transfer function) to determine if there are any angular sensitivities to a camera system?
- Define the following conceptsa. Positive modulation percentageb. Modulation efficiencyc. Signal strengthd. At least one technique for building an AM transmitter.For a user signal with maximum frequency 20KHz: What must be the proportionality constant Kf and the modulation index β for the maximum FM modulated signal bandwidth to be 200 KHz, if the maximum signal amplitude is 2 volts? What is your standard deviation in Hz? Calculate modulated signal strengthQ:1. Suppose the signal contains frequencies up to 10 KHz. What is the minimum frequency of signal sampling that makes it possible to recover the signal after sampling? 2. If the channel has frequency bandwidth of 5 MHz. What is the smallest sampling period T which provides zero ISI ?
- 3. Explain the benefit of using IF stage in super heterodyne receivers.draw the spectrum ideal Sampling and Natured Sampling??please find enclosed spot of our general expression in our frequency modulation. And in this frequency modulation instantaneous frequency is given as: fi(t)=fc+400cos(2π100t) a)Here carrier frequency is fc, message signal is fm,so please calculate kf ,β(modulation indicator) ve maximum frequency deviation ∆f ? b)Write the simplest form of the FM modular signal by writing the parameters instead. c)Calculate the average power that the FM modulated signal will create on a 1 ohm resistor.
- For question 1, The instructor asked what is an approach to modulate a PWM signal and what is an approach to demodulate a signal. Thank you. Explain one approach for PWM modulation and detection (demodulation). Please draw the required circuits and diagrams.Consider sinusoidal modulation in an AM system. Assuming no overmodulation, what will be the modulation index (μ) when the maximum and minimum values of the envelope are are 3 V and 1 V respectively?There are stations having the maximum frequency deviation of 75 kHz, and the maximum audio frequency for the modulation is 15 kHz , find its deviation ratio. Determine the peak frequency deviation for a FM modulator with a deviation sensitivity of 12 kHz/V and a peak modulating signal of 9V. If the maximum frequency deviation of the carrier is 10 kHz and the maximum modulating frequency is 6.7 kHz, find the modulating index. A PM signal has a maximum allowed deviation of 22 kHz and an actual deviation of 5 kHz . What is its percent modulation?