...切比雪夫逼近法；MATLAB仿真设计； [gap=3713]eywords: FIR digital filters, Window function method, Frequency sampling method, Chebyshev approximation method, MATLAB simulation design; ..
By usingMATLABsignal and using windowmethod, frequencysamplingandChebyshevapproximation the design of lowpassdigitalfilterin the toolbox have been processed.