Contrast optimization autofocus algorithm

Liu Yuehua; Jing Linjiao

Volume 25 Issue 1

Jan. 2003

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 2003 > 25(1): 24-30

Liu Yuehua, Jing Linjiao. Contrast optimization autofocus algorithm[J]. Journal of Electronics & Information Technology, 2003, 25(1): 24-30.

Citation:

Liu Yuehua, Jing Linjiao. Contrast optimization autofocus algorithm[J]. Journal of Electronics & Information Technology, 2003, 25(1): 24-30.

Liu Yuehua, Jing Linjiao. Contrast optimization autofocus algorithm[J]. Journal of Electronics & Information Technology, 2003, 25(1): 24-30.

Citation:

Liu Yuehua, Jing Linjiao. Contrast optimization autofocus algorithm[J]. Journal of Electronics & Information Technology, 2003, 25(1): 24-30.

PDF( 1413 KB)

Contrast optimization autofocus algorithm

Received Date: 2001-05-08
Rev Recd Date: 2001-10-22
Publish Date: 2003-01-19

Abstract

Abstract

To focus a synthetic-aperture radar image which suffers from phase errors, an autofocus algorithm, Contrast Optimization Autofocus Algorithm (COAA), is proposed. This algorithm is based on the optimization of the contrast function, which represents a measure of the focus degree of the image. The main steps of the COAA are described. Experimental results show that this algorithm is very efficient. The COAA has many advantages. The relative performances of COAA and another autofocus algorithm, MAPDRIFT autofocus algorithm, arc compared.

FullText(HTML)

References(1)

References

W.G. Carrara, et al., Spotlight Synthetic Aperture Radar, Boston, London, Artech House. 1995,245-246.[2]F. Berizzi, G. Corsini, Autofocusing of inverse synthetic aperture radar images using contrast optimization, IEEE Trans. on Aerospace Electron. Syst, 1996, 32(3), 1185-1191.[3]张澄波,综合孔径雷达:原理、系统分析与应用,科学出版社,1989,55.

Relative Articles

Supplements(0)

Cited By

Proportional views