Image and Signal Processing Methods

ESPRIT-like algorithm for computational-efficient angle estimation in bistatic multiple-input multiple-output radar

[+] Author Affiliations
Jian Gong

Xidian University, School of Electronic Engineering, TaiBai South Road, Xi’an, Shaanxi 710071, China

Air Force Engineering University, Air Defense and Anti-Missile Institute, ChangLe East Road, Xi’an, Shaanxi 710051, China

Shuntian Lou

Xidian University, School of Electronic Engineering, TaiBai South Road, Xi’an, Shaanxi 710071, China

Yiduo Guo

Air Force Engineering University, Air Defense and Anti-Missile Institute, ChangLe East Road, Xi’an, Shaanxi 710051, China

J. Appl. Remote Sens. 10(2), 025003 (Apr 15, 2016). doi:10.1117/1.JRS.10.025003
History: Received October 19, 2015; Accepted March 18, 2016
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Abstract.  An estimation of signal parameters via a rotational invariance techniques–like (ESPRIT-like) algorithm is proposed to estimate the direction of arrival and direction of departure for bistatic multiple-input multiple-output (MIMO) radar. The properties of a noncircular signal and Euler’s formula are first exploited to establish a real-valued bistatic MIMO radar array data, which is composed of sine and cosine data. Then the receiving/transmitting selective matrices are constructed to obtain the receiving/transmitting rotational invariance factors. Since the rotational invariance factor is a cosine function, symmetrical mirror angle ambiguity may occur. Finally, a maximum likelihood function is used to avoid the estimation ambiguities. Compared with the existing ESPRIT, the proposed algorithm can save about 75% of computational load owing to the real-valued ESPRIT algorithm. Simulation results confirm the effectiveness of the ESPRIT-like algorithm.

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Citation

Jian Gong ; Shuntian Lou and Yiduo Guo
"ESPRIT-like algorithm for computational-efficient angle estimation in bistatic multiple-input multiple-output radar", J. Appl. Remote Sens. 10(2), 025003 (Apr 15, 2016). ; http://dx.doi.org/10.1117/1.JRS.10.025003


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