Title :
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
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;
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
DOI :
10.1109/MMWCST.2012.6238157
