Shaping the spectrum of random-phase radar waveforms
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.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1356230
- Patent Number(s):
- 9645228
- Application Number:
- 14/102,928
- Assignee:
- Sandia Corporation
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2013 Dec 11
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 99 GENERAL AND MISCELLANEOUS; 47 OTHER INSTRUMENTATION
Citation Formats
Doerry, Armin W., and Marquette, Brandeis. Shaping the spectrum of random-phase radar waveforms. United States: N. p., 2017.
Web.
Doerry, Armin W., & Marquette, Brandeis. Shaping the spectrum of random-phase radar waveforms. United States.
Doerry, Armin W., and Marquette, Brandeis. Tue .
"Shaping the spectrum of random-phase radar waveforms". United States. https://www.osti.gov/servlets/purl/1356230.
@article{osti_1356230,
title = {Shaping the spectrum of random-phase radar waveforms},
author = {Doerry, Armin W. and Marquette, Brandeis},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {5}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Terrain profile radar system
patent, July 1988
- Goebel, Robert H.; Fogle, Dale A.
- US Patent Document 4,758,839
Complementary-sequence pulse radar with matched filtering and Doppler tolerant sidelobe suppression preceding Doppler filtering
patent, August 1995
- Gallagher, John J.; Urkowitz, Harry
- US Patent Document 5,440,311
Continuous wave wideband precision ranging radar
patent, March 1998
- Reed, John
- US Patent Document 5,731,781
Method for removing RFI from SAR images
patent, August 2003
- Doerry, Armin W.
- US Patent Document 6,608,586
Noise correlation radar devices and methods for detecting targets with noise correlation radar
patent, October 2011
- Govoni, Mark
- US Patent Document 8,035,551
Method for estimating the position and the speed of a target with a radar emitting an OFDM waveform
patent, October 2014
- Lellouch, Gabriel; Erkocevic-Pribic, Radmila
- US Patent Document 8,860,605
Pulse radar apparatus
patent-application, April 2004
- Ishii, Satoshi; Dooi, Yoshikazu; Yatsuka, Hiroyuki
- US Patent Application 10/680250; 20040070532
System and method for sidelobe reduction using detect-and-subtract techniques
patent-application, February 2007
- Ohnishi, Katsumi
- US Patent Application 11/207430; 20070040729
Time duplex apparatus and method for radar sensor front-ends
patent-application, July 2007
- Puglia, Kenneth
- US Patent Application 11/327739; 20070152871
Method For Measuring The Radial Velocity Of A Target With A Doppler Radar
patent-application, September 2009
- Tigrek, Recep Firat; De Heij, Wilhelmus Johannes
- US Patent Application 12/390603; 20090237292
Continuous Wave Radar
patent-application, February 2011
- Stove, Andrew
- US Patent Application 12/849304; 20110037642
Efficient Pulse Doppler Radar With No Blind Ranges, Range Ambiguities, Blind Speeds, or Doppler Ambiguities
patent-application, October 2013
- Song, William S.
- US Patent Application 13/453195; 20130278455
Noise radar using random phase and frequency modulation
journal, November 2004
- Axelsson, S.R.J.
- IEEE Transactions on Geoscience and Remote Sensing, Vol. 42, Issue 11, p. 2370-2384
Analysis of Random Step Frequency Radar and Comparison With Experiments
journal, April 2007
- Axelsson, Sune R. J.
- IEEE Transactions on Geoscience and Remote Sensing, Vol. 45, Issue 4, p. 890-904
Random Noise Radar/Sodar With Ultrawideband Waveforms
journal, May 2007
- Axelsson, Sune R. J.
- IEEE Transactions on Geoscience and Remote Sensing, Vol. 45, Issue 5, p. 1099-1114
A technique for the generation of customizable ultra-wideband pseudo-noise waveforms
conference, May 2011
- Vela, Russell; Erisman, David; Narayanan, Ram M.
- Proc. SPIE, Vol. 8021
Noisy Stepped Frequency (NSF) waveform in RF tomography
conference, May 2012
- Vela, Russell; Lo Monte, Lorenzo; Ranney, Kenneth I.
- Proc. SPIE, Vol. 8361