Document Type

Thesis

Date of Award

5-31-1988

Degree Name

Master of Science in Electrical Engineering - (M.S.)

Department

Electrical Engineering

First Advisor

Joseph Frank

Second Advisor

S. Pandey

Abstract

Of particular interest in satellite communications are modulation techniques that have a relatively constant envelope and are power and bandwidth efficient. Attempts have been made to satisfy these requirements by using phase and frequency modulation formats. Recently, one approach has been researched which combines the modulation and encoding functions, which is referred to as multi-h continuous phase modulation. Simultaneously good power and bandwidth efficiencies can be achieved at the expense of increased complexity.

This report examines the performance of multi-h continuous phase modulation by a simulation. A multi-h phase coded modulation is generated, passed through the AWGN transmission channel. The received signals are resolved into a generalized vector-space of four dimensions, and the Viterbi algorithm is used to detect the signals. From the simulation date, the error rate of the system is obtained as a function of the received signal to noise ratio.

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