1. Say whether each of the following statements is True or False and give a full and complete justification. Use diagram
Posted: Mon May 02, 2022 2:37 pm
1. Say whether each of the following statements is True or False and give a full and complete justification. Use diagrams wherever needed. No partial credit will be given for answers without sufficient explanation.
(i) In Differential PSK (DPSK), the data is encoded after PSK modulation using a differ- ential code to allow for incoherent decoding. (j) Based on Nyquist criterion for zero Intersymbol Interference (ISI), we should use time- limited pulses to avoid interference between neighboring pulses. (k) Raised-cosine pulses are favored over sinc pulses because they have better bandwidth.
(i) In Differential PSK (DPSK), the data is encoded after PSK modulation using a differ- ential code to allow for incoherent decoding. (j) Based on Nyquist criterion for zero Intersymbol Interference (ISI), we should use time- limited pulses to avoid interference between neighboring pulses. (k) Raised-cosine pulses are favored over sinc pulses because they have better bandwidth.