EngeeDSP Functions Signal generation, analysis, and preprocessing chirp demod diric gauspuls gmonopuls medfilt1 modulate pulstran rectpuls sawtooth sinc square tripuls Digital and analogue filters bandpass bandstop butter cheby1 cheby2 ctf2zp decimate downsample ellip filtfilt fir1 fir2 fircls fircls1 firls firpm firpmord freqz gaussdesign grpdelay highpass impz impzlength interp intfilt lowpass rcosdesign resample scaleFilterSections sgolay sos2ss sos2tf sos2zp sosfilt ss2sos ss2zp tf2sos tf2ss tf2zp upsample zp2ctf zp2sos zp2ss zp2tf Mathematics abs angle coeffs conv conv2 cos deconv fft fft2 fftshift filter ifft ifft2 ifftshift interp1 pchip randn sin spline Matrices and arrays circshift Spectral analysis barthannwin bartlett blackman blackmanharris bohmanwin chebwin dpss flattopwin gausswin hamming hann kaiser nuttallwin parzenwin rectwin taylorwin triang tukeywin Data import and analysis corrcoef cov cummax cummin detrend max mean median min movmad movmedian rms smoothdata std var xcorr xcov Transformations, correlation, and modeling arburg bitrevorder cceps cconv convmtx corrmtx czt dct dftmtx digitrevorder emd envelope hilbert idct invfreqs invfreqz istft levinson lsf2poly poly2rc prony pspectrum rc2is rc2lar rc2poly rceps spectrogram stft vmd xcorr2 Filter development and analysis allpass2wdf designHighpassFIR designHighpassIIR designMultirateFIR designNotchPeakIIR Measuring and highlighting features alignsignals bandpower cusum dtw dutycycle edr enbw falltime finddelay findpeaks findsignal instbw instfreq meanfreq medfreq midcross obw peak2peak peak2rms powerbw pulseperiod pulsesep pulsewidth risetime rssq settlingtime sfdr sinad slewrate snr spectralCrest spectralEntropy spectralFlatness spectralKurtosis spectralSkewness statelevels toi undershoot System objects EngeeDSP.NotchPeakFilter EngeeDSP.spectrumAnalyzer EngeeDSP.gpsWaveformGenerator