Waveform warping for general frequency-modulated radar waveforms
Patent
·
OSTI ID:1600277
Various technologies pertaining to motion compensation for radar systems using FM waveforms are described herein. A waveform generator outputs a parametrized, pulsed FM waveform to a radar antenna, whereupon the radar antenna emits pulsed electromagnetic (EM) radiation into a target area based upon the parametrized FM waveform. The parametrized FM waveform compensates for motion of a radar platform that includes the antenna. The parametrized FM waveform compensates for inter-pulse Doppler effects by introducing a time delay to a reference FM waveform, and compensates for intra-pulse Doppler effects by time dilating, or frequency-scaling, pulses of the reference waveform. The parametrized FM waveform can be generated by modifying the reference waveform based on first and second parameters, where the parameters are based upon motion of the radar platform and changes in echo return delay times from one pulse to another.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- Patent Number(s):
- 10,473,755
- Application Number:
- 15/438,024
- OSTI ID:
- 1600277
- Country of Publication:
- United States
- Language:
- English
First Demonstration of Airborne SAR With Nonlinear FM Chirp Waveforms
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journal | February 2016 |
Digital synthesis of linear-FM chirp waveforms: comments on performance and enhancements
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conference | May 2014 |
Generating precision nonlinear FM chirp waveforms
|
conference | April 2007 |
| Generating nonlinear FM chirp waveforms for radar. | report | August 2006 |
| SAR processing with non-linear FM chirp waveforms. | report | November 2006 |
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