Signal Synthesizer and Method Therefor
Pace, Phillip E.
Surratt, Robert E.
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A digital synthesizer includes a digital radio frequency memory (DRFM) for storing phase values and corresponding digital signals. The digital synthesizer includes a digital processing circuit receiving input from the DRFM, the circuit including tapped delay lines and a summer summing the output of the tapped delay lines. The digital synthesizer includes a signal modulator independently synthesizing within each tapped delay line a frequency modulated and gain scaled signal, wherein input to the tapped delay lines are phase values from the DRFM.
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Pace, Phillip E.; Ekestrom, S.; Karow, C.; Fouts, D. (Naval Postgraduate School, 2000-02-24); NPS-EC-00-005A digital image synthesizer (DIS), especially useful as a counter-targeting signal repeater, (i.e., for synthesizing the characteristic echo signature of a pre-selected target) is reported. The DIS has a digital radio ...
Ekestorm, Stig R.T.; Karow, Christopher (Monterey, California. Naval Postgraduate School, 2000-09);The subject of this thesis is a digital image synthesizer (DIS), which is especially useful as a counter-targeting signal repeater, i.e., for synthesizing the characteristic echo signature of a pre-selected target. The DIS ...
Pace, Phillip E.; Surratt, Robert E.; Yeo, Siew-Yam (The United States of America as represented by the Secretary of the Navy, Washington, DC (US), 2006-12-26);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 ...