DE4013660

Received signals preferably have a stable frequency spectrum over a frequency span derived from a resolution bandpass filter. Furthermore, the frequency span has a plurality of discrete frequency measurements across the frequency span. It is desired to determine which of the discrete frequencies cor...

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Hauptverfasser:	ELLIS, MICHAEL K., ROHNERT PARK, CALIF., US, TAYLOR, JOHN B., SANTA ROSA, CALIF., US
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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creator	ELLIS, MICHAEL K., ROHNERT PARK, CALIF., US TAYLOR, JOHN B., SANTA ROSA, CALIF., US
description	Received signals preferably have a stable frequency spectrum over a frequency span derived from a resolution bandpass filter. Furthermore, the frequency span has a plurality of discrete frequency measurements across the frequency span. It is desired to determine which of the discrete frequencies correspond to peaks in the frequency spectrum. Each peak is integrated to initially determine which of the peaks are from narrowband continuous wave signals by comparing the aspect ratio of the peaks with the aspect ratio of a resolution bandpass filter. Those peaks which fail the aspect ratio test are discarded from the frequency spectrum. The remaining peaks are then fitted to a second order polynomial curve to finally determine whether they are due to narrowband continuous wave signals. The peaks which do not fit the curve are labeled as broadband.
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Furthermore, the frequency span has a plurality of discrete frequency measurements across the frequency span. It is desired to determine which of the discrete frequencies correspond to peaks in the frequency spectrum. Each peak is integrated to initially determine which of the peaks are from narrowband continuous wave signals by comparing the aspect ratio of the peaks with the aspect ratio of a resolution bandpass filter. Those peaks which fail the aspect ratio test are discarded from the frequency spectrum. The remaining peaks are then fitted to a second order polynomial curve to finally determine whether they are due to narrowband continuous wave signals. 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subjects	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
title	DE4013660
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