signal

Create an autoregressive moving average (ARMA) model.

Filter of given order and specifications.

Create a moving average (MA) model

Zero-pole-gain model

Complex unit phasor of the given angle in degrees.

Bilinear transformation

Generate a Butterworth filter.

Butterworth filter order and cutoff

Chebyshev type-I filter order and cutoff

Dolph-Chebyshev window coefficients

Generate a Chebyshev filter.

A chirp signal

Convolution

Decimate or downsample a signal

Elliptic or Cauer filter

Elliptic filter order and cutoff

Filters with an FIR filter using the FFT

Filter a signal

Forward and reverse filter a signal

FIR filter generation

FIR filter generation

s-plane frequency response

z-plane frequency response

Group delay of a filter or model

Inverse FFT

Impulse-response characteristics

Interpolate / Increase the sample rate

Interpolation

Kaiser window

Parameters for an FIR filter from a Kaiser window

Durbin-Levinson Recursion

Median filter

Piecewise cubic hermite interpolation

Polynomial given roots

Evaluate a polynomial

Parks-McClellan optimal FIR filter design

Change the sampling rate of a signal

Roots of a polynomial

Transform filter band edges

Savitzky-Golay smoothing filters

Apply a Savitzky-Golay smoothing filter

Internal or uncommented functions

Signal processing

Spectrogram plot

Spencer filter

Unwrap radian phases

Example wav file

Windowing functions

Pole-zero plot