The correction of chirp radar signals based on SAR raw data

Huang Lisheng; Wang Zhensong; Xu Yongjian

Volume 24 Issue 11

Nov. 2002

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 2002 > 24(11): 1641-1647

Huang Lisheng, Wang Zhensong, Xu Yongjian. The correction of chirp radar signals based on SAR raw data[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1641-1647.

Citation:

Huang Lisheng, Wang Zhensong, Xu Yongjian. The correction of chirp radar signals based on SAR raw data[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1641-1647.

Huang Lisheng, Wang Zhensong, Xu Yongjian. The correction of chirp radar signals based on SAR raw data[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1641-1647.

Citation:

Huang Lisheng, Wang Zhensong, Xu Yongjian. The correction of chirp radar signals based on SAR raw data[J]. Journal of Electronics & Information Technology, 2002, 24(11): 1641-1647.

PDF( 1188 KB)

The correction of chirp radar signals based on SAR raw data

Received Date: 2001-04-13
Rev Recd Date: 2001-07-18
Publish Date: 2002-11-19

Abstract

Abstract

This paper introduces an algorithm used in estimation of the phase error of chirp signal. Firstly, the algorithm applies Range Cell Migration Correction (MCRC) to SAR signals with chirp scaling method, and processes on azimuth compression only. Then the phase error of the radar chirp signal is estimated by applying the auto-focus method, for example, Map Drift (MD) or Phase Gradient Algorithm (PGA) to the azimuth processing of signals. Further correction on estimated phase error is applied to discussion of the factors that influent the phase error estimation. The algorithm is proved by computer simulation.

FullText(HTML)

References(1)

References

D.A. Ausherman, A. Kozma, J. L. Walker, H. M. Jones, E. C. Poggio, Developments in radar imaging, IEEE Trans. on Aerospace and Electronic Systems, 1984, 20(4), 363-400.[2]P.H. Eichel, D. C. Ghiglia, C. V. Jakowatz, Jr., Speckle processing method for synthetic-aperture-radar phase, Optics Letters, 1989, 14(1), 1-3.[3]P.H. Eichel, C. V. Jakowatz, Phase-gradient algorithm as optimal estimator of phase drivative,Optics Letters, 1989, 14(20), 1101-1103.[4]C.V. Jakowatz, Jr., D. E. Wahl, Eigenvector method for maximum-likehood estimation of phase errors in synthetic-aperture-radar imagery, Optical Society of America, 1993, 10(12), 2539-2545.[5]D.E. Wahl, P. H. Eichel, D. C. Ghiglia, C. V. Jakowatz, Phase gradient autofocus-A robust tool for high resolution SAR phase correction, IEEE Trans. on Aerospace and Electronic Systems,1994, 30(3), 827-834.[6]Terry M. Calloway, Gregory W. Donohoe, Subaperture autofocus for synthetic aperture radar,IEEE Trans. on Aerospace and Electronic Systems, 1994, 30(2), 617-621.[7]R. Keith Raney, H. Runge, Richard Bamler, Ian G. Cumming, Frank H. Wong, Precision SAR processing using chirp scaling, IEEE Trans. on Geoscience and Remote Sensing, 1994, 32(4),786-799.[8]G.W. Davidson, I. G. Cumming, M. R. Ito, A chirp scaling approach processing squint mode SAR data, IEEE Trans. on Aerospace and Electronic Systems, 1996, 32(1), 121-133.

Relative Articles

Supplements(0)

Cited By

Proportional views