A method of Doppler frequency rate estimation for millimeter-wave missile-borne SAR

A method of Doppler frequency rate estimation is proposed to deal with motion compensations for missile-borne SAR imaging. Working in burst SAR mode, Map Drift method is improved to satisfy the complicated condition of missile-borne motion, such as PRF up to ten kHz and maneuvering speed up to 3 Ma. Appropriate block size of azimuth data sequence and correlative operation should be chosen according to performance analysis, which is shown in this paper. Experimentations proved the validity of this method.

[1]  J. Moreira.  Estimating the residual error of the reflectivity displacement method for aircraft motion error extraction from SAR raw data , 1990, IEEE International Conference on Radar.

[2]  G. Franceschetti,et al.  Motion compensation errors: effects on the accuracy of airborne SAR images , 2005, IEEE Transactions on Aerospace and Electronic Systems.

[3]  Ian G. Cumming,et al.  Digital Processing of Synthetic Aperture Radar Data: Algorithms and Implementation , 2005 .

[4]  R. Goodman,et al.  Issues in ultra-wideband, widebeam SAR image formation , 1995, Proceedings International Radar Conference.

[5]  Charles V. Jakowatz,et al.  Phase gradient autofocus-a robust tool for high resolution SAR phase correction , 1994 .

[6]  John Kirk,et al.  Motion Compensation for Synthetic Aperture Radar , 1975, IEEE Transactions on Aerospace and Electronic Systems.

[7]  Walter G. Carrara,et al.  Motion compensation algorithm for widebeam stripmap SAR , 1995, Defense, Security, and Sensing.

[8]  Weiguang Guo,et al.  SAR motion compensation based on signal processing method , 2003, IEEE International Conference on Robotics, Intelligent Systems and Signal Processing, 2003. Proceedings. 2003.

[9]  Josef Mittermayer,et al.  Sub-aperture algorithm for motion compensation improvement in wide-beam SAR data processing , 2001 .

[10]  Ian G. Cumming,et al.  Application of efficient linear FM matched filtering algorithms to synthetic aperture radar processing , 1985 .

[11]  S. Hensley,et al.  First P-band results using the GeoSAR mapping system , 2001, IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217).

[12]  J. Kolman.  PACE: an autofocus algorithm for SAR , 2005, IEEE International Radar Conference, 2005..

[13]  Søren Nørvang Madsen,et al.  Motion compensation for ultra wide band SAR , 2001, IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217).

[14]  J. R. Moreira,et al.  A New Method Of Aircraft Motion Error Extraction From Radar Raw Data For Real Time Motion Compensation , 1990 .

[15]  Armin W. Doerry,et al.  Results of the sub-thirty-pound high-resolution miniSAR demonstration , 2006, SPIE Defense + Commercial Sensing.

[16]  Yao Jing-ping.  Extended chirp scaling algorithm for airborne SAR data processing , 2008 .

[17]  F. Berizzi,et al.  Autofocusing of inverse synthetic aperture radar images using contrast optimization , 1996, IEEE Transactions on Aerospace and Electronic Systems.