Computer Simulation of Adaptive Control of Active Noise Reduction System in a Duct

Discusses the adaptive sigital signal processing in active noise reduction control. Analyzes the transfer function of the adaptive noise reduction system with adaptive control in a duct. Establishes the mathematical model using FIR filter using the LMS algorithm. Characteristics of the active noise reduction system have been simulated by the computer, and some results from the computer simulation are given ways of improving the method of simulation as well as the effect of noise reduction are proposed.