Comparing Median and IIR method

The following is a comparison between the Median method and the IIR method. The first figure indicates the detection rate for different FFT and threshold.

This figure indicates the Number of possible targets for the IIR method using a fix FFT 256 and changing the threshold.  Notice that as time increases the number of possible targets is reduced . These figures are from February 26 2009 using the 13 mHz system

This figure indicates the Median method is more variable to detect the number of possible targets, however the values are small compare to IIR method

The follwing set of figures are a comparison between both methods using only the minimum values of FFT and Threshold

This figure is to represent the maximum values of each of the sites

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