Spectral stitching method to increase instantaneous bandwidth in vector signal generators

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United States of America Patent

PATENT NO 9918316
SERIAL NO

15425304

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Abstract

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Embodiments are described of devices and methods for processing a signal using a plurality of vector signal generators (VSGs). A digital signal may be provided to a plurality of signal paths, each of which may process a respective frequency band of the signal, the respective frequency bands having regions of overlap. The gain and phase of each signal path may be adjusted such that continuity of phase and magnitude are preserved through the regions of overlap. The adjustment of gain and phase may be accomplished by a complex multiply with a complex calibration constant. The calibration constant may be determined for each signal path by comparing the gain and phase of one or more calibration tones generated within each region of overlap. Each signal path may comprise a VSG to convert the respective signal to an analog signal, which may be combined to obtain a composite signal.

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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 Cary, US 26 310
Dark, Stephen L Austin, US 27 166

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