Airborne Multi-frequency-Band SAR system and its information processing

Author

Chang, Wenge ; Li, Xiangyang ; Li, Yueli ; Chang, Yulin

Author_Institution

Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol.(NUDT), Changsha

fYear

2008

fDate

20-23 June 2008

Firstpage

1807

Lastpage

1811

Abstract

This paper describes the design of a multi-frequency band (MFB) SAR system and the flight tests, and discusses the methods of image formation, registration and fusion. Some experiment results are also presented. The MFB SAR system works in time-division mode so as to improve the compatibility of subsystems and to reduce the volume and the weight of the system. The MFB SAR images of the same scene are presented and some conclusion is made from the flight tests. Nonlinear chirp scaling algorithm is used to form the MFB SAR images. The problems of motion compensation for P-band SAR are analyzed. A new registration method, which can rectify the coordinates of the MFB SAR images with less than 1 pixel of registration error, is introduced. Finally, the MFB SAR images are fused based on the GHM multi-wavelet transform.

Keywords

aerospace testing; image registration; radar imaging; synthetic aperture radar; airborne multi-frequency-band SAR system; flight tests; image formation; image fusion; image registration; information processing; multi-wavelet transform; nonlinear chirp scaling algorithm; Aerospace electronics; Aerospace engineering; Aircraft; Dipole antennas; Electronic equipment testing; Frequency; Information processing; L-band; Receiving antennas; Synthetic aperture radar; Flight tests; Fusion; Multi-frequency-Band SAR; Registration;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Automation, 2008. ICIA 2008. International Conference on

Conference_Location

Changsha

Print_ISBN

978-1-4244-2183-1

Electronic_ISBN

978-1-4244-2184-8

Type

conf

DOI

10.1109/ICINFA.2008.4608300

Filename

4608300