Signal Synthesizer and Method Therefor

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Author
Pace, Phillip E.
Surratt, Robert E.
Yeo, Siew-Yam
Date
2006-12-26Metadata
Show full item recordAbstract
A method and system for signal processing, especially
useful as a signal repeater, i.e. for simulating the characteristic
echo signature of a preselected target. The system has
a digital radio frequency memory (DRFM) and associated
circuitry, including digital tapped delay lines, and a modulator
in each delay line to impose both amplitude and
frequency modulation in each line.
Use of digital semiconductor technology increases the bandwidth
and sensitivity of such a repeater over prior analog
based systems, reduces the noise of the repeated signal,
reduces size and cost of such a system, and permits real time
alteration of operating parameters, permitting rapid and
adaptive shifting among different kinds of targets to be
simulated. Preferably the associated circuitry is unitary with,
and part of, the DRFM.
Description
Patent
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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