PERFORMANCE EVALUATION OF SOME CONTINUOUS PHASE MODULATION SCHEMES

Abstract

Bandwidth — and power — efficient modulation has been one of the most important research subjects for possible application in satellite communications. Mini-mum shift keying (MSK) has gained increasing popularity in such situations. A class of signals can be obtained by changing baseband pulse shaping of MSK in such a way as to still maintain its constant envelope, property. This dissertation considers the design and implementation of an MSK modem. The performance of MSK and a few other constant envelope signals in linear channels has been simulated. The (3,1,2) code has been used (together with MSK) to observe the effect of coding on probability of error performance of. MSK.