Improving angular resolution based on maximum a posteriori criterion for scanning radar

Author

Guan, Jinchen ; Huang, Yulin ; Yang, Jianyu ; Li, Wenchao ; Wu, Junjie

Author_Institution

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

fYear

2012

fDate

7-11 May 2012

Abstract

Angular resolution is crucial for scanning radar system. Angular resolution of real aperture radar (RAR) is decided by the size of the antenna aperture. In this paper, a novel method of improving angular resolution based on maximum a posteriori (MAP) framework is proposed. Firstly, scanning radar signal model is illustrated, and then an iterative deconvolution based on MAP algorithm that improves angular resolution is derived. Simulation results show that the method can efficiently improve angular resolution; then real radar experiment results validate the effectiveness of this method.

Keywords

aperture antennas; deconvolution; iterative methods; maximum likelihood estimation; radar signal processing; MAP algorithm; RAR; angular resolution; antenna aperture; iterative deconvolution; maximum a posteriori criterion; real aperture radar; scanning radar signal; scanning radar system; Deconvolution; Image resolution; Radar antennas; Radar imaging; Signal resolution; angular resolution; iterative deconvolution; maximum a posteriori (MAP); scanning radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (RADAR), 2012 IEEE

Conference_Location

Atlanta, GA

ISSN

1097-5659

Print_ISBN

978-1-4673-0656-0

Type

conf

DOI

10.1109/RADAR.2012.6212183

Filename

6212183