The Method of Chebyshev Filter Simulation Design in Signal and System Experimental Teaching

滤波器是信号处理中非常重要的电路，也是信号与系统实验中非常重要的部分，而Chebyshev滤波器是典型的性能较佳的一种模拟滤波器。本文通过设计通带波动0.1 dB，中心频率1000 Hz，带宽可在100 Hz、200 Hz、300 Hz、400 Hz之间可调的Chebyshev带通滤波器，探讨了将这种滤波器设计引入实验教学的基本方法。 Filter is very important in the signal processing circuit, it is also a very important part of the signal and system experiment. Chebyshev filter is a kind of analog filters which typically have a better performance. This article designs the Chebyshev bandpass filters which have 0.1 dB passband fluctuation, 1000 Hz center frequency and bandwidth at 100 Hz, 200 Hz, 300 Hz and 400 Hz and discusses the basic method to introduce this kind of filter design into the experimental teaching.