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Title: Time-dependent phase error correction using digital waveform synthesis

The various technologies presented herein relate to correcting a time-dependent phase error generated as part of the formation of a radar waveform. A waveform can be pre-distorted to facilitate correction of an error induced into the waveform by a downstream operation/component in a radar system. For example, amplifier power droop effect can engender a time-dependent phase error in a waveform as part of a radar signal generating operation. The error can be quantified and an according complimentary distortion can be applied to the waveform to facilitate negation of the error during the subsequent processing of the waveform. A time domain correction can be applied by a phase error correction look up table incorporated into a waveform phase generator.
Inventors:
;
Issue Date:
OSTI Identifier:
1398979
Assignee:
National Technology & Engineering Solutions of Sandia, LLC SNL-A
Patent Number(s):
9,784,818
Application Number:
14/045,993
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2013 Oct 04
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 42 ENGINEERING

Works referenced in this record:

Synthetic aperture radar: not just a sensor of last resort
conference, August 2003
  • Wells, Lars M.; Doerry, Armin W.; Andraitis, Arthur A.
  • Proc. SPIE , Vol. 5109
  • DOI: 10.1117/12.487282

Digital signal processing applications in high-performance synthetic aperture radar processing
conference, November 2003
  • Doerry, A.W.; Dubbert, D.F.
  • Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on
  • DOI: 10.1109/ACSSC.2003.1292055

A high-resolution, four-band SAR Testbed with real-time image formation
conference, May 1996
  • Walker, B.; Sander, G.; Thompson, M.
  • Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
  • DOI: 10.1109/IGARSS.1996.516827