DIGITAL IMPLEMENTATION OF A BPSK DEMODULATOR

Abstract

Some Telemetry systems today receive a binary phase shift keying modulation format. Typically, to demodulate BPSK requires using a carrier synchronizer followed by a bit synchronizer. Demodulation of BPSK can be accomplished using digital signal processing techniques to implement both synchronizers. This paper describes a digital system that demodulates a 16 KHZ, 2KBPS BPSK signal. In order to evaluate these techniques, the theory of operation was evaluated. Additionally, a computer simulation of the demodulator was developed. The computer simulation was implemented using Pascal. The techniques were optimized to give maximum performance while requiring minimum hardware and power in an actual implementation.