Method and Apparatus for Generation of Arbitrary Waveforms with Large Bandwidth and Long Time Apertures
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United States of America Patent
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Issued Date -
Jun 26, 2014
app pub date -
Jun 10, 2012
filing date -
Jun 9, 2011
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Abandoned
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Abstract
Techniques for producing an arbitrary broadband waveform include storing a first waveform in a circulating coherent storage device. A next waveform is generated. A shifted replica is generated by shifting, by a frequency shift one of the next waveform or the waveform in the storage device. A combined waveform is stored by coherently combining the shifted replica and one of the next waveform or the waveform in the storage device which waveform is not frequency shifted. An apparatus includes a source of a carrier frequency waveform, and a modulator configured to impose the next waveform on the carrier frequency waveform. The apparatus also includes a circulating coherent storage device configured to store a coherent interaction between multiple waveforms. The apparatus also includes a frequency shifter configured to generate a shifted replica by shifting, by a frequency shift, one of the next waveform or a waveform in the storage device.
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