Synthetic instruments extract masked signal parameters

  title={Synthetic instruments extract masked signal parameters},
  author={R. W. Lowdermilk and F. J. Harris},
  journal={IEEE Instrumentation & Measurement Magazine},
We have reviewed the signal conditioning required to obtain high-quality spectral measurements with an FFT-based spectrum analyzer. The conditioning includes data windowing and extended length. Folded windows are required at the input to the transform, and significant ensemble averaging of power spectrum and cross power spectrum at the output of the FFT is needed. We also commented on the effect of cross coupling between signal and noise terms on the variance of the spectral output terms when… CONTINUE READING


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