Design of Digital Pulse-Position Modulation System

Abstract Pulse-Position Modulation (PPM) is a modulation method that only makes every pulse in the carrier sequence change with time but without changing shape and amplitude of signal. In this paper, PPM system designed. Firstly, an appropriate mathematical model established to represent transmission, signal After that, we write code add white Gaussian noise channel. Then transmission process simulated visualized. At last, error rate scheme analyzed discussed through MATLAB simulation then compared other methods. The goal paper study by designing fully. Besides, our methods understand advantages disadvantages PPM. This may help scholars design research system.