Signal Synthesizer and Method Therefor

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Authors
Pace, Phillip E.
Surratt, Robert E.
Yeo, Siew-Yam
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Advisors
Date of Issue
2006-12-26
Date
Publisher
The Government of the United States of America, as represented by the Secretary of the Navy, Washington, DC (US)
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Abstract
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.
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Patent
Description
Patent
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Organization
Naval Postgraduate School (U.S.)
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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.
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