Noniterative quality phase-gradient autofocus (qpga) algorithm for spotlight sar imagery

IEEE Transactions on Geoscience and Remote Sensing

Volumn 36, Issue 5 PART 1, 1998, Pages 1531-1539

  Chan, Hian Lim ^a  

^a NATIONAL UNIVERSITY OF SINGAPORE   (Singapore)

Author keywords

Phase gradient approach; Synthetic aperture radar (sar) autofocus

Indexed keywords

ALGORITHMS; CONVERGENCE OF NUMERICAL METHODS; ELECTROMAGNETIC WAVE SCATTERING; ERROR ANALYSIS; RADAR IMAGING; SIGNAL FILTERING AND PREDICTION; SYNTHETIC APERTURE RADAR;

QUALITY PHASE-GRADIENT AUTOFOCUS (PGA) METHOD;

REMOTE SENSING;

EID: 0032162669     PISSN: 01962892     EISSN: None     Source Type: Journal    
DOI: 10.1109/36.718857     Document Type: Article

References (8)

1. M. P. G. Otten, "Comparison of SAR autofocus algorithms," in Proc. Military Microw., 1990, pp. 362-367.
2. D. E. Wahl, P. H. Eichel, D. C. Ghiglia, and C. V. Jakowatz, "Phase gradient autofocus-A robust tool for high resolution SAR phase correction," IEEE Trans. Aerosp. Electron. Syst., vol. 30, pp. 827-834, July 1994.
3. D. E. Wahl and C. V. Jakowatz, "New approach to strip-map SAR autofocus," in Proc. IEEE 6th Digital Signal Processing Workshop, 1994, pp. 53-56.
4. P. H. Eichel and C. V. Jakowatz, "Phase-gradient algorithm as an optimal estimator of the phase derivative," Opt. Lett., vol. 14, no. 20, Oct. 1989.
5. C. V. Jakowatz and D. E. Wahl, "Eigenvector method for maximumlikelihood estimation of phase errors in synthetic-aperture-radar imagery," J. Opt. Soc. Amer. A, vol. 10, Dec. 1993.
6. W. G. Carrera, R. S. Goodman, and R. M. Majeswski, Spotlight Synthetic Aperture Radar: Signal Processing Algorithms, Norwood, MA: Artech House, 1995.
7. E. Yadin, "SAR autofocusing viewed as adaptive beamforming on prominent scatterers," in Proc. Inst. Elect. Eng. Radar 94 Conf., Brighton, U.K., pp. 138-143.
8. H. L. Chan and T. S. Yeo, "Non-iterative spotlight SAR autofocusing using a modified phase-gradient approach," in Proc. IEEE IGARSS'97, poster presentation.