removeWhitenoise

PURPOSE

uses truncated SVD to remove white noise from pre-whitened waveforms.

SYNOPSIS

function [transformed,spectr] = removeWhitenoise( spikes, rankCut )

DESCRIPTION

uses truncated SVD to remove white noise from pre-whitened waveforms.
returns a low-rank approximation of the original signal.


rankCut: cut off after which rank

returns: spectr is the singular value spectrum (diag of S)
         transformed is low rank approx

urut/nov04

CROSS-REFERENCE INFORMATION

This function calls:

aaad average across diagonals of a hankel matrix

This function is called by:

transformSpikes %function [newSpikes2,newTimestamps2] = transformSpikes( spikes, timestamps, noiseAutocorr )