Demonstration Software Design of Signal Processing

摘要

This paper presents the design of a piece of software demonstrating digital signal processing without relying on hardware. By creating the algorithms of generating analog signal, sampling, spectral analysis, filtering, D/A conversion and post tow-pass filtering, the software carries out manipulations on the discrete-time samples, and shows graphically the result of every step of processing depending purely on mathematical means without hardware support. It proves to be helpful for understanding the fundamental concepts of digital signal processing.