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.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- Sandia Corporation
- Patent Number(s):
- 9,645,228
- Application Number:
- 14/102,928
- OSTI ID:
- 1356230
- Resource Relation:
- Patent File Date: 2013 Dec 11
- Country of Publication:
- United States
- Language:
- English
Similar Records
Phase coded, micro-power impulse radar motion sensor
Phase coded, micro-power impulse radar motion sensor