How can I use MATLAB to perform a least squares estimation?
How can I use MATLAB to perform a least squares estimation?
(OP)
Specifically, I am working with six digitized audio signals input via an array of microphones in order to find the location of a speaker within a room based upon time delay of arrival. I have been pointed in the direction of using a cross-correlation function in order to determine phase differences between the signals arriving at each microphone. From there, I must determine the distance from each microphone to the audio source in order to pinpoint the source's coordinates, or at least an angle to which a camera must point to capture video of the source. Any help would be greatly appreciated.
Danny
Danny





RE: How can I use MATLAB to perform a least squares estimation?
Use xcorr (Signal processing toolbox). Read the help (or doc).
Joe
The new BSTeX- Equation viewer for Matlab7
http://www.geocities.com/bstex2001
RE: How can I use MATLAB to perform a least squares estimation?
M
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Dr Michael F Platten
RE: How can I use MATLAB to perform a least squares estimation?
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: How can I use MATLAB to perform a least squares estimation?
Danny
RE: How can I use MATLAB to perform a least squares estimation?
I do not know how to proceed from the point of having obtained the range differences. Any help with the implementation of a least squares estimation would be greatly appreciated.