A Maximum Entropy Filter.
Research and development rept. for fiscal year 1974,
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An adaptive line tracking technique to improve the resolution and tracking performance of standard Discrete Fourier Transform techniques is described. The technique employs a Maximum Entropy, or one-step linear prediction filter. The recursive nature of the filter precludes the necessity of matrix inversion. A variable memory fade factor forces the filter to rely more heavily on recent data to facilitate tracking of nonstationary spectral lines.
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