DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Waveform warping for general frequency-modulated radar waveforms

Abstract

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.

Inventors:
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600277
Patent Number(s):
10473755
Application Number:
15/438,024
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 02/21/2017
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE

Citation Formats

Doerry, Armin W. Waveform warping for general frequency-modulated radar waveforms. United States: N. p., 2019. Web.
Doerry, Armin W. Waveform warping for general frequency-modulated radar waveforms. United States.
Doerry, Armin W. Tue . "Waveform warping for general frequency-modulated radar waveforms". United States. https://www.osti.gov/servlets/purl/1600277.
@article{osti_1600277,
title = {Waveform warping for general frequency-modulated radar waveforms},
author = {Doerry, Armin W.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {11}
}

Works referenced in this record:

Vehicle radar system having multiple operating modes
patent, July 2008


First Demonstration of Airborne SAR With Nonlinear FM Chirp Waveforms
journal, February 2016


Radar Apparatus, Radar Apparatus Controlling Method
patent-application, January 2006


Multi-Resolution FMCW Radar Detection Method and Radar Implementing Such a Method
patent-application, February 2018


Monopulse Radar System
patent-application, August 2004


Radar System Using RF Noise
patent-application, January 2006


Digital synthesis of linear-FM chirp waveforms: comments on performance and enhancements
conference, May 2014


FM-CW multibeam radar apparatus
patent, July 1997


Method to "Zoom into" Specific Objects of Interest in a Radar
patent-application, April 2016


Antenna Configurations for Reduced Radar Complexity
patent-application, February 2004


Vehicle-mounted radar apparatus
patent, May 2000


Vehicle Radar System Having Multiple Operating Modes
patent-application, July 2007


FMCW radar system
patent, May 2005


Angle-Resolving FMCW Radar Sensor
patent-application, May 2016


Generating precision nonlinear FM chirp waveforms
conference, April 2007


FM-CW radar system
patent, September 2004


In-vehicle radar system
patent, September 2010


Pulse doppler radar device
patent, May 2012


Vehicle Cognitive Radar Methods and Systems
patent-application, October 2018


Vehicle-mounted radar system and detection method
patent, December 1997