An analysis of anti-TDOA positioning capability for MIMO radar

Author

Yang, Shaowei ; He, Zishu ; Liu, Hongming ; Li, Jun ; Cheng, Ting

Author_Institution

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

fYear

2012

fDate

19-20 April 2012

Firstpage

1

Lastpage

4

Abstract

The advantages of MIMO radar with orthogonal signals in anti-TDOA (Time Difference of Arrival) are discussed. First the cross-correlation between signals received by two receivers in different directions relative to MIMO radar is analyzed. It shows that the cross-correlation changes with the angle difference in certain value of which the two signals are even completely uncorrelated. Then a detailed analysis of angle-range coupling is presented based on uniform linear transmit array (ULTA) when Stepped Frequency Division Linear Frequency Modulation (SFDLFM) signals are used. The angle-range coupling will ultimately lead to the positioning deviation, thus contributing to the radar RF stealth.

Keywords

MIMO radar; military radar; receivers; time-of-arrival estimation; MIMO radar; SFDLFM signals; Time Difference of Arrival; ULTA; angle-range coupling; anti-TDOA positioning capability; orthogonal signals; positioning deviation; radar RF stealth; receivers; signal cross-correlation; stepped frequency division linear frequency modulation; uniform linear transmit array; Arrays; Bandwidth; Delay effects; MIMO radar; Radio frequency; Receivers; MIMO radar; RF Stealth; Radar positioning; Time Delay Estimation; Time Difference of Arrival;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2012 International Workshop on

Conference_Location

Chengdu

Print_ISBN

978-1-4673-1893-8

Type

conf

DOI

10.1109/MMWCST.2012.6238157

Filename

6238157