Spectral stitching method to increase instantaneous bandwidth in vector signal analyzers

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United States of America Patent

PATENT NO 9979585
SERIAL NO

15679004

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Abstract

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Various embodiments are described of devices and associated methods for processing a signal using a plurality of vector signal analyzers (VSAs). An input signal may be split and provided to a plurality of VSAs, each of which may process a respective frequency band of the signal, where the respective frequency bands have regions of overlap. Each VSA may adjust the gain and phase of its respective signal such that continuity of phase and magnitude is preserved through the regions of overlap. The correction of gain and phase may be accomplished by a complex multiply with a complex calibration constant. A complex calibration constant may be determined for each VSA by comparing the gain and phase of one or more calibration tones generated with each region of overlap, as measured by each of the VSAs.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL INSTRUMENTS CORPORATION11500 N MOPAC EXPRESSWAY AUSTIN TX 78759

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ammerman, Johnathan R W Spokane, US 9 131
Baker, Daniel J Austin, US 26 310
Dark, Stephen L Austin, US 27 166

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