Constant Acceleration Moving Target Indication of Airborne SAR Based on Road Assistance

Author

Hongyin Shi ; Zhitao Hou ; Xiuhua Guo

Author_Institution

Sch. of Inf. Sci. & Eng., Yan Shan Univ., Qinhuangdao, China

fYear

2012

fDate

27-30 May 2012

Firstpage

1

Lastpage

4

Abstract

Traditional Synthetic Aperture Radar (SAR) moving target detection methods cannot estimate the parameters of non-constant velocity moving targets. To solve the problem, a method of airborne dual-channel SAR moving targets detection is presented based on road assistance and the characteristics of moving target imaging. From the spatial geometry model and echo signal of the dual-channel SAR system, Displaced Phase Center Antenna (DPCA) technique is used firstly to suppress clutter and detect moving targets, then the velocity and location parameters of moving targets are estimated by using road information. Finally, across-track acceleration can be computed based on azimuth defocusing of moving targets. Numerical simulations have demonstrated the effectiveness of the approach proposed.

Keywords

airborne radar; geometry; numerical analysis; object detection; radar antennas; synthetic aperture radar; DPCA technique; across-track acceleration; airborne dual-channel SAR moving target detection; airborne synthetic aperture radar moving target detection methods; constant acceleration moving target indication; displaced phase center antenna technique; dual-channel SAR system; echo signal; moving target azimuth defocusing; moving target location parameters; moving target velocity parameters; nonconstant velocity moving targets; numerical simulations; road assistance; road information; spatial geometry model; Acceleration; Apertures; Azimuth; Clutter; Object detection; Roads; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering and Technology (S-CET), 2012 Spring Congress on

Conference_Location

Xian

Print_ISBN

978-1-4577-1965-3

Type

conf

DOI

10.1109/SCET.2012.6342009

Filename

6342009