Shaping the spectrum of random-phase radar waveforms

Title: Shaping the spectrum of random-phase radar waveforms

The various technologies presented herein relate to generation of a desired waveform profile in the form of a spectrum of apparently random noise (e.g., white noise or colored noise), but with precise spectral characteristics. Hence, a waveform profile that could be readily determined (e.g., by a spoofing system) is effectively obscured. Obscuration is achieved by dividing the waveform into a series of chips, each with an assigned frequency, wherein the sequence of chips are subsequently randomized. Randomization can be a function of the application of a key to the chip sequence. During processing of the echo pulse, a copy of the randomized transmitted pulse is recovered or regenerated against which the received echo is correlated. Hence, with the echo energy range-compressed in this manner, it is possible to generate a radar image with precise impulse response.

Inventors:: Doerry, Armin W.; Marquette, Brandeis

Issue Date:: 2017-05-09

OSTI Identifier:: 1356230

Assignee:: Sandia Corporation SNL-A

Patent Number(s):: 9,645,228

Application Number:: 14/102,928

Contract Number:: AC04-94AL85000

Resource Relation:: Patent File Date: 2013 Dec 11

Research Org:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 99 GENERAL AND MISCELLANEOUS; 47 OTHER INSTRUMENTATION

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