System Simulation of PPM-Modulated Ultra-Wideband Signals over AWGN Channel

This document presents a comprehensive system simulation of pulse position modulation (PPM) encoded ultra-wideband signals. The simulation models signal transmission through an additive white Gaussian noise channel, with detailed analysis of both time-domain and frequency-domain characteristics. The implementation utilizes MATLAB's communication toolbox functions for PPM modulation, AWGN channel modeling, and spectral analysis. Key algorithms include pulse shaping using Gaussian monocycles, PPM symbol mapping, and power spectral density calculation via FFT transformations. The generated plots provide crucial insights into signal behavior during transmission, including pulse distortion, timing characteristics, and spectral occupancy. These simulation results enable important conclusions about signal transmission performance and facilitate deeper research and analysis of ultra-wideband communication systems. The findings hold significant value for improving communication system performance and effectiveness, while serving as valuable references and guidance for future research directions.