Introduction - If you have any usage issues, please Google them yourself
Digital signal processing matlab file content/conv (convolution part) dupconv, overlap to retain the law freqcirconv frequency domain circular convolution freqconv frequency convolution timecirconv, domain circular convolution timeconv domain convolution product/fft (frequency domain analysis part) d2fft the base 2FFTdft the DFT simplified procedure source dtftDTFT demo/the fir to fir filter hngetwindow (the fir filter design) the fir to the fir filter window function wn