Passive radar localization by time difference of arrival

Author

Dersan, AySegiil ; Tanik, Yalqin

Author_Institution

Microwave & Syst. Technol. Group, ASELSAN Inc., Ankara, Turkey

Volume

2

fYear

2002

fDate

7-10 Oct. 2002

Firstpage

1251

Abstract

A detailed analysis for the performance of TDOA based passive radar localization systems is provided. The system considered in the analyses consists of four sensors and associated receiver blocks, samplers, and signal processors. Arrival time for the radar pulses is obtained by adaptive thresholding. Cramer-Rao bounds of TOA and TDOA are obtained. The effects of the receiver bandwidth and the sampling rate on estimation accuracy are investigated. A simple interpolation technique that significantly enhances the performance is described. A simple but efficient method to combine the TDOA measurements from the two antenna pairs is proposed. Finally, the accuracy of the resultant location estimation obtained through triangulation is obtained.

Keywords

direction-of-arrival estimation; interpolation; military communication; radar receivers; radar signal processing; radar theory; sensors; signal sampling; Cramer-Rao bounds; TDOA; TOA; adaptive thresholding; antenna pairs; estimation accuracy; interpolation; location estimation; military communication; passive radar localization; performance; receiver bandwidth; receiver blocks; samplers; sampling rate; sensors; signal processors; time difference of arrival; triangulation; Antenna measurements; Bandwidth; Interpolation; Passive radar; Performance analysis; Sensor systems; Signal analysis; Signal processing; Signal sampling; Time difference of arrival;

fLanguage

English

Publisher

ieee

Conference_Titel

MILCOM 2002. Proceedings

Print_ISBN

0-7803-7625-0

Type

conf

DOI

10.1109/MILCOM.2002.1179658

Filename

1179658