A Robust Spatial DPI Suppression Algorithm for GSM-Based Passive Detection System

Author

Guo, Jianxin ; Jiang, Lei ; Li, Jinliang ; Zhang, Qun ; Gao, Zhaozhao

Author_Institution

Telecommun. Eng. Inst., Air Force Eng. Univ., Xi´´an, China

fYear

2011

Firstpage

1

Lastpage

4

Abstract

One of the major problems in GSM-based passive detection systems is how to suppress the strong direct path interference (DPI) effectively. According to the features of the GSM downlink signal and the DPI suppression requirement, a spatial filtering algorithm based on the direction of arrival (DOA) information and a least square null constraint optimization is proposed. Theoretical analyses and simulation results show that at least 55dB suppression gain can be achieved by using the proposed algorithm.

Keywords

cellular radio; direction-of-arrival estimation; interference suppression; least squares approximations; optimisation; passive radar; radar detection; spatial filters; DOA estimation; GSM; direct path interference; direction of arrival; least square null constraint optimization; passive detection system; robust spatial DPI suppression; spatial filtering algorithm; Arrays; Delay; GSM; Interference; Passive radar; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on

Conference_Location

Wuhan

ISSN

2161-9646

Print_ISBN

978-1-4244-6250-6

Type

conf

DOI

10.1109/wicom.2011.6040116

Filename

6040116