# Signal Processing

## Documentation for package ‘signal’ version 1.8-0

- DESCRIPTION file.

## Help Pages

A B C D E F G H I K L M N P R S T U W Z

signal-package | Signal processing

## -- A --

an | Complex unit phasor of the given angle in degrees.
Arma | Create an autoregressive moving average (ARMA) model.
as.Arma | Create an autoregressive moving average (ARMA) model.
as.Arma.Arma | Create an autoregressive moving average (ARMA) model.
as.Arma.Ma | Create an autoregressive moving average (ARMA) model.
as.Arma.Zpg | Create an autoregressive moving average (ARMA) model.
as.Zpg | Zero-pole-gain model
as.Zpg.Arma | Zero-pole-gain model
as.Zpg.Ma | Zero-pole-gain model
as.Zpg.Zpg | Zero-pole-gain model

## -- B --

bartlett | Windowing functions
bilinear | Bilinear transformation
bilinear.Arma | Bilinear transformation
bilinear.default | Bilinear transformation
bilinear.Zpg | Bilinear transformation
blackman | Windowing functions
boxcar | Windowing functions
butter | Generate a Butterworth filter.
butter.default | Generate a Butterworth filter.
butter.FilterOfOrder | Generate a Butterworth filter.
buttord | Butterworth filter order and cutoff

## -- C --

cheb | Internal or uncommented functions
cheb1ord | Chebyshev type-I filter order and cutoff
chebwin | Dolph-Chebyshev window coefficients
cheby1 | Generate a Chebyshev filter.
cheby1.default | Generate a Chebyshev filter.
cheby1.FilterOfOrder | Generate a Chebyshev filter.
cheby2 | Generate a Chebyshev filter.
cheby2.default | Generate a Chebyshev filter.
cheby2.FilterOfOrder | Generate a Chebyshev filter.
chirp | A chirp signal
conv | Convolution

## -- D --

decimate | Decimate or downsample a signal

## -- E --

ellip | Elliptic or Cauer filter
ellip.default | Elliptic or Cauer filter
ellip.FilterOfOrder | Elliptic or Cauer filter
ellipke | Internal or uncommented functions
ellipord | Elliptic filter order and cutoff

## -- F --

fftfilt | Filters with an FIR filter using the FFT
FftFilter | Filters with an FIR filter using the FFT
filter | Filter a signal
filter.Arma | Filter a signal
filter.default | Filter a signal
filter.FftFilter | Filters with an FIR filter using the FFT
filter.Ma | Filter a signal
filter.MedianFilter | Median filter
filter.sgolayFilter | Apply a Savitzky-Golay smoothing filter
filter.Zpg | Filter a signal
FilterOfOrder | Filter of given order and specifications.
filtfilt | Forward and reverse filter a signal
filtfilt.Arma | Forward and reverse filter a signal
filtfilt.default | Forward and reverse filter a signal
filtfilt.Ma | Forward and reverse filter a signal
filtfilt.Zpg | Forward and reverse filter a signal
fir1 | FIR filter generation
fir2 | FIR filter generation
flattopwin | Windowing functions
fractdiff | Internal or uncommented functions
freqs | s-plane frequency response
freqs.Arma | s-plane frequency response
freqs.default | s-plane frequency response
freqs.Ma | s-plane frequency response
freqs_plot | s-plane frequency response
freqs_plot.default | s-plane frequency response
freqs_plot.freqs | s-plane frequency response
freqz | z-plane frequency response
freqz.Arma | z-plane frequency response
freqz.default | z-plane frequency response
freqz.Ma | z-plane frequency response
freqz_plot | z-plane frequency response
freqz_plot.default | z-plane frequency response
freqz_plot.freqz | z-plane frequency response

## -- G --

gausswin | Windowing functions
grpdelay | Group delay of a filter or model
grpdelay.Arma | Group delay of a filter or model
grpdelay.default | Group delay of a filter or model
grpdelay.Ma | Group delay of a filter or model
grpdelay.Zpg | Group delay of a filter or model

## -- H --

hamming | Windowing functions
hanning | Windowing functions

## -- I --

ifft | Inverse FFT
impz | Impulse-response characteristics
impz.Arma | Impulse-response characteristics
impz.default | Impulse-response characteristics
impz.Ma | Impulse-response characteristics
interp | Interpolate / Increase the sample rate
interp1 | Interpolation

## -- K --

kaiser | Kaiser window
kaiserord | Parameters for an FIR filter from a Kaiser window

## -- L --

levinson | Durbin-Levinson Recursion
logseq | Internal or uncommented functions

## -- M --

Ma | Create a moving average (MA) model
medfilt1 | Median filter
MedianFilter | Median filter
mkpp | Internal or uncommented functions

## -- N --

ncauer | Internal or uncommented functions

## -- P --

pchip | Piecewise cubic hermite interpolation
plot.freqs | s-plane frequency response
plot.freqz | z-plane frequency response
plot.grpdelay | Group delay of a filter or model
plot.impz | Impulse-response characteristics
plot.specgram | Spectrogram plot
poly | Polynomial given roots
polyval | Evaluate a polynomial
postpad | Internal or uncommented functions
ppval | Internal or uncommented functions
print.freqs | s-plane frequency response
print.freqz | z-plane frequency response
print.grpdelay | Group delay of a filter or model
print.impz | Impulse-response characteristics
print.specgram | Spectrogram plot

## -- R --

remez | Parks-McClellan optimal FIR filter design
resample | Change the sampling rate of a signal
roots | Roots of a polynomial

## -- S --

sftrans | Transform filter band edges
sftrans.Arma | Transform filter band edges
sftrans.default | Transform filter band edges
sftrans.Ma | Transform filter band edges
sftrans.Zpg | Transform filter band edges
sgolay | Savitzky-Golay smoothing filters
sgolayfilt | Apply a Savitzky-Golay smoothing filter
signal | Signal processing
sinc | Internal or uncommented functions
specgram | Spectrogram plot
spencer | Spencer filter
spencerFilter | Spencer filter

## -- T --

triang | Windowing functions

## -- U --

unwrap | Unwrap radian phases

## -- W --

wav | Example wav file

## -- Z --

Zpg | Zero-pole-gain model
zplane | Pole-zero plot
zplane.Arma | Pole-zero plot
zplane.default | Pole-zero plot
zplane.Ma | Pole-zero plot
zplane.Zpg | Pole-zero plot