Study on bistatic SAR ocean wave imaging mechanism

Author

Ying, Yu ; Xiaoqing, Wang ; Minhui, Zhu ; Jinsong, Chong

Author_Institution

Nat. Key Lab. of Microwave Imaging Technol., Chinese Acad. of Sci., Beijing, China

Volume

2

fYear

2009

fDate

12-17 July 2009

Abstract

In order to develop bistatic SAR ocean investigation, the first issue is the study of bistatic SAR ocean surface imaging mechanism. And velocity bunching mechanism is a SAR inherent modulation. Thus, the intensity expression in the bistatic SAR image plane is derived in this paper. The expression describes quantificationally the displacement of the scatter elements in the image plane and a degradation in radar resolution in azimuthal direction. In addition, a bistatic SAR linear velocity bunching transfer function is obtained in the linear parameter regime. Finally, this paper analyzes qualitatively the effects that various platform observation conditions have on the bistatic SAR linear imaging range of wave spectrum.

Keywords

geophysical image processing; ocean waves; radar imaging; synthetic aperture radar; SAR image plane; SAR inherent modulation; SAR linear imaging range; azimuthal direction; bistatic SAR ocean wave imaging mechanism; observation condition; radar resolution; velocity bunching mechanism; wave spectrum; Degradation; Electromagnetic scattering; Marine technology; Microwave imaging; Ocean waves; Radar imaging; Radar scattering; Sea surface; Surface waves; Transmitters; Bistatic SAR; Observation condition; Ocean; Velocity bunching;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009

Conference_Location

Cape Town

Print_ISBN

978-1-4244-3394-0

Electronic_ISBN

978-1-4244-3395-7

Type

conf

DOI

10.1109/IGARSS.2009.5417994

Filename

5417994