| Abstract: 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. |
| Filed: 12/11/2013 |
| Application Number: 14/102928 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
| Attribution for Derwent World Patents Index Records published on Sandia ® Clarivate. All rights reserved. Republication or redistribution of Clarivate content, including by framing or similar means, is prohibited without the prior written consent of Clarivate. Clarivate and its logo, as well as all other trademarks used herein are trademarks of their respective owners and used under license. |