SPECTRA

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computes power spectral density of one or two files

<in1>   Input 1 file name  
<out1>  File to receive PSD of input 1
<nfft>  Desired transform size.  Any factor supported [DEF=1k]
<win>   Name of time window to be computed and applied to the data [DEF=HANN]
<over>  The fraction of <nfft> to overlap blocks [DEF=0] 
<navg>  Num of transforms to average in computing each output FFT frame [DEF=-1]
<in2>   Input 2 file name [OPTIONAL]
<out2>  File to receive PSD of <in2> [OPTIONAL]
<cross> File to receive PSD of <in1> * conjugate of <in2> [OPTIONAL]

This command performs Fast Fourier Transforms on a stream of data. It calls the
FFT primitive with default navg=-1 and default switches /1D/PSD.

To match X-Midas behavior add the /PARTIAL=NONE switch.

See Also: FFT