Signal Generation and Processing Software

This article presents a signal generation and processing software I developed based on MATLAB 7 platform. The software incorporates multiple signal processing algorithms including: deterministic signal generation (sinusoidal, square, triangular waves) using mathematical function implementations, random signal generation through probability distribution functions, digital filter design using FDA Tool and custom implementations (Butterworth, Chebyshev filters), spectral analysis via FFT algorithms with windowing functions, and comparative spectrum analysis of pre/post-filtered signals. These functionalities are implemented through modular MATLAB scripts featuring interactive GUI controls for parameter adjustment and real-time plotting capabilities using MATLAB's plotting functions. The software serves as an effective educational tool for Signals and Systems and Digital Signal Processing courses, providing hands-on experience with core DSP concepts through practical code implementation. Users can modify algorithm parameters directly in the source code to observe effects on signal characteristics, thereby deepening understanding of signal processing principles and mastering practical skills in signal generation and analysis techniques.