Frequency Frequency-Rate Spectral Analysis
Target and/or sensor motion can smear a received acoustic tonal over many frequency cells when the frequency resolution is matched to the “at rest” tonal frequency width. In addition to a loss of frequency resolution there is a degradation in SNR. The FFR (Frequency Frequency- Rate spectral analysis) within limits eliminates the smearing of acoustic energy resulting in improved resolution and SNR.
KeywordsMaximum Amplitude Frequency Resolution Sensor Motion Frequency Cell Record Length
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