Correction of motion measurement errors beyond the range resolution of a synthetic aperture radar

Doerry, Armin W; Heard, Freddie E; Cordaro, J Thomas

Correction of motion measurement errors beyond the range resolution of a synthetic aperture radar

Patent · Tue Jun 24 00:00:00 EDT 2008

OSTI ID:941140

Doerry, Armin W ^[1]; Heard, Freddie E ^[1]; Cordaro, J Thomas ^[1]

Albuquerque, NM

Motion measurement errors that extend beyond the range resolution of a synthetic aperture radar (SAR) can be corrected by effectively decreasing the range resolution of the SAR in order to permit measurement of the error. Range profiles can be compared across the slow-time dimension of the input data in order to estimate the error. Once the error has been determined, appropriate frequency and phase correction can be applied to the uncompressed input data, after which range and azimuth compression can be performed to produce a desired SAR image.

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM

Sponsoring Organization:: United States Department of Energy

DOE Contract Number:: AC04-94AL85000

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Number(s):: 7,391,357

Application Number:: 11/243,826

OSTI ID:: 941140

Country of Publication:: United States

Language:: English

References (5)

Spotlight-Mode Synthetic Aperture Radar: A Signal Processing Approach Jakowatz, Charles V.; Wahl, Daniel E.; Eichel, Paul H. https://doi.org/10.1007/978-1-4613-1333-5	book	January 1996
Phase gradient autofocus-a robust tool for high resolution SAR phase correction Wahl, D. E.; Eichel, P. H.; Ghiglia, D. C. IEEE Transactions on Aerospace and Electronic Systems, Vol. 30, Issue 3 https://doi.org/10.1109/7.303752	journal	July 1994
SAR automatic range-migration correction Wang, Junfeng; Liu, Xingzhao IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 https://doi.org/10.1109/IGARSS.2004.1369985	conference	September 2004
Anomalous propagation limitations to high-resolution SAR performance Denny, M.; Scott, I. Proceedings of the 2002 IEEE Radar Conference (IEEE Cat. No.02CH37322) https://doi.org/10.1109/NRC.2002.999727	conference	January 2002
Range-Doppler Imaging of Rotating Objects Walker, Jack IEEE Transactions on Aerospace and Electronic Systems, Vol. AES-16, Issue 1 https://doi.org/10.1109/TAES.1980.308875	journal	January 1980

Similar Records

Comparing range data across the slow-time dimension to correct motion measurement errors beyond the range resolution of a synthetic aperture radar

Patent · Tue Aug 17 00:00:00 EDT 2010 · OSTI ID:1013812

Decreasing range resolution of a SAR image to permit correction of motion measurement errors beyond the SAR range resolution

Patent · Tue Jul 20 00:00:00 EDT 2010 · OSTI ID:1012816

Synthetic aperture radar images with composite azimuth resolution

Patent · Tue Mar 31 00:00:00 EDT 2015 · OSTI ID:1177026

Related Subjects

47 OTHER INSTRUMENTATION

Correction of motion measurement errors beyond the range resolution of a synthetic aperture radar

Citation Formats

References (5)

Similar Records

Related Subjects