EngeeDSP Functions Signal generation, analysis, and preprocessing chirp demod diric gauspuls medfilt1 modulate rectpuls sawtooth sinc square tripuls Digital and analogue filters butter cheby1 cheby2 decimate ellip filtfilt fir1 fir2 fircls1 firls firpmord gaussdesign intfilt rcosdesign scaleFilterSections Mathematics coeffs conv conv2 cos fft fftshift filter ifft ifftshift sin Matrices and arrays circshift Spectral analysis dpss hann kaiser tukeywin Data import and analysis detrend movmad xcorr Transformations, correlation, and modeling hilbert xcorr2 Filter development and analysis allpass2wdf designMultirateFIR Measuring and highlighting features snr