Correlation
Correlation methods using a PC
In the detection of small signals, noise is the limiting factor. There are four principal methods of recovering signals in the presence of noise. These are:
Listing 8.8
(1) Filtering
(2) Averaging
(3) Correlation
(4) Coding
As high-performance instrumentation systems have become available, increasing interest has been expressed in correlation methods. Although autocorrelation is an interesting signal-processing operation in its own right, it remains an abstraction. It is preferable to identify a practical problem. This should provoke further discussion and illustrate the principles of this ...
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