A point target reference spectrum for general bistatic SAR processing

Author

Wu, Junjie ; Yang, Jianyu ; Huang, Yulin ; Yang, Haiguang ; Liu, Zhe

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2011

fDate

22-27 May 2011

Firstpage

1393

Lastpage

1396

Abstract

Focusing bistatic SAR data in frequency domain requires the two dimensional (2D) point target reference spectrum (PTRS). In this paper, a 2D PTRS is derived based on Lof feld´s bistatic formula (LBF). The spectrum in this paper combines the influence of the Doppler centroids and frequency modulated rates of the transmitter and receiver on the total Doppler contributions. The essential of this paper is to model the Doppler contributions of the transmitter and the receiver using power series. It can be used in extreme bistatic (like hybrid spaceborne/airborne) and high squint (like bistatic forward-looking) cases. The accuracy of the PTRS is verified using numerical simulation of point target.

Keywords

Doppler shift; FM radar; frequency-domain analysis; numerical analysis; radar receivers; radar transmitters; synthetic aperture radar; 2D PTRS; 2D point target reference spectrum; Doppler centroids; Lof feld´s bistatic formula; bistatic SAR data focusing; bistatic SAR processing; frequency domain; frequency modulated rates; numerical simulation; power series; receiver; transmitter; Azimuth; Doppler effect; Frequency modulation; History; Imaging; Receivers; Transmitters; Bistatic SAR; Loffeld´s bistatic formula; point target reference spectrum;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on

Conference_Location

Prague

ISSN

1520-6149

Print_ISBN

978-1-4577-0538-0

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2011.5946673

Filename

5946673