Flight path-driven mitigation of wavefront curvature effects...

Communications: directive radio wave systems and devices (e.g. – Synthetic aperture radar

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C342S02500R, C342S02500R, C342S159000, C342S194000, C342S195000

Reexamination Certificate

active

07551119

ABSTRACT:
A wavefront curvature effect associated with a complex image produced by a synthetic aperture radar (SAR) can be mitigated based on which of a plurality of possible flight paths is taken by the SAR when capturing the image. The mitigation can be performed differently for different ones of the flight paths.

REFERENCES:
patent: 4758838 (1988-07-01), Maeda et al.
patent: 5179383 (1993-01-01), Raney et al.
patent: 5208685 (1993-05-01), Aleksoff et al.
patent: 6027447 (2000-02-01), Li
patent: 6037892 (2000-03-01), Nikias et al.
patent: 6400306 (2002-06-01), Nohara et al.
patent: 6735346 (2004-05-01), Woodford et al.
patent: 7405834 (2008-07-01), Marron et al.
patent: 2005/0128126 (2005-06-01), Wolframm et al.
patent: 60020162 (1985-02-01), None
patent: 61201180 (1986-09-01), None
patent: 62073182 (1987-04-01), None
J. L. Walker, “Range-Doppler Imaging of Rotating Objects,” IEEE Trans. on Aerospace and Electronic Systems, AES-16 (1), pp. 23-52, (1980).
N. E. Doren, C. V. Jakowatz, Jr., D. E. Wahl, P. A. Thompson, “General formulation for wavefront curvature correction in polar-formatted spotlight-mode SAR images using space-variant post-filtering”, Proceedings of 1997 International Conference on Image Processing, vol. 1, pp. 861-864, Oct. 26-29, 1997.
C. V. Jakowatz, D. E. Wahl, P. A. Thompson, N. E. Doren, “Space-variant filtering for correction of wavefront curvature effects in spotlight-mode SAR imagery formed via polar formatting”, Proceedings of the SPIE—The International Society for Optical Engineering, Algorithms for Synthetic Aperture Radar Imagery IV, vol. 3070, pp. 33-42, Orlando, FL, USA, Apr. 23-24, 1997.
N. E. Doren, “Space-Variant Post-Filtering for Wavefront Curvature Correction in Polar-Formatted Spotlight-Mode SAR Imagery”, Sandia Report SAND99-2706, pp. 133-163, 200-203, Oct. 1999.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Flight path-driven mitigation of wavefront curvature effects... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flight path-driven mitigation of wavefront curvature effects..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flight path-driven mitigation of wavefront curvature effects... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4133358

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.