Narrowband signal processor

Details Narrowband signal processor Narrowband signal processor

2005-04-05

2005-04-05

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C341S050000, C375S142000, C704S207000, C704S208000, C704S251000

Reexamination Certificate

active

06876953

ABSTRACT:
A method to process narrowband signals includes dividing the signal into segments of length N, where N optimizes filter bandwidth, FFT size, processing and memory. Each N-length segment is processed sequentially by filtering, a FFT and a peak detector that identifies the N-length segment's K largest spectral components. The frequency, bandwidth and power for the K largest spectral components are stored sequentially as N-processed data. After processing multiple N-length segments, reconstructing individual frequency spectrums for J continuous segments of the N-processed data, mapping the J reconstructed spectrums to a single spectrum, and applying the peak detector to the composite spectrum to separately store the single spectrum's K largest frequencies, with powers and bandwidths, as (N×J)-processed data. The N-length data is processed in groups of J until all N-length data is reprocessed. J may have multiple values, generating multiple processed data sets.

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