Academic help online
A delta modulator is to be designed to transmit the information of an analog waveform that has a peak-to-peak level of 1 V and a bandwidth of 3.4 kHz. Assume that the waveform is to be transmitted over a channel whose frequency response is extremely poor above 1 MHz.
(a) Select the appropriate step size and sampling rate for a sine-wave test signal, and discuss the performance of the system, using the parameter values you have selected.
(b) If the DM system is to be used to transmit the information of a voice (analog) signal, select the appropriate step size when the sampling rate is 25 kHz. Discuss the performance of the system under these conditions
