Listfolk; This question may seem more mathematical than anything else, but this list seems quite adept on a quite broad range of subjects so here goes...
Is there a summarized list somewhere of why one particular windowing function would be used over another in DSP measurements. I know if I select Hanning vs Hamming vs Exact Blackman vs any other type that my returned values can vary by as much as 3dB! I am particularly interested in the accuracy of measuring a VME A/D converter Board (of the sigma delta variety) Self Noise parameter (with differential inputs shorted together). I've written a meas VI that implements the FFT Power Spectrum and FFT Power Spectral Density VI's but the windowing function can change the results dramatically. Can anyone advise on the usage of the correct windowing function? Any info on the correct method for making these measurements would also be greatly appreciated. Thanks Rick Mahoney Lockheed Martin Corp Syracuse, New York 13221 ~~The Surest sign of intelligent life on other planets is the fact that they haven't tried to contact us~~
