FREQ.MAC

CONVOLUTION, DECONVOLUTION, AND CORRELATION

 

FACOR auto-correlation using FFTs

FCONV convolution using FFTs

FCROSS cross-correlation using FFTs

FDECONV deconvolution using FFTs

FPOW power spectrum of two series

 

COVARIANCE

 

ACOVAR auto-covariance in time domain

COVAR covariance in time domain

FACOVAR auto-covariance using FFTs

FCOVAR covariance using FFTs

 

DEMODULATION

 

FDEMOD performs frequency demodulation

 

FREQUENCY DOMAIN INTEGRATION

 

FINTEG performs integration in frequency domain

 

GROUP DELAY

 

GRPDELAY group delay using FFTs

 

NORMALIZED AUTO AND AUTOCROSS CORRELATION

 

ACORR normalized auto-correlation using convolution

FACORR auto-correlation using FFTs

FXCORR cross-correlation of two series using FFTs

XCORR normalized cross-correlation using convolution

 

PADDING AND WRAPPING

 

PAD2 pads series with zeroes length of power of two

WRAPHALF reverses the two halves of a series

 

SPECTRAL DENSITY AND COHERENCE

 

COH coherence between two series using FFTs

CSD cross spectral density in polar form

TCOH coherence between two series using convolution

TCSD cross spectral density using convolution

TPSD power spectral density using convolution

 

TWO-DIMENSIONAL FFTS

 

FFT2 two-dimensional FFT

IFFT2 two-dimensional IFFT