干扰背景下MIMO雷达部分相关信号设计

doi:10.11999/JEIT150637

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Abstract

Transmitted waveform can be designed to improve the SINR performance of colocated MIMO in the preference of interference. However, the optimized waveforms generally have high auto-correlation sidelobes which worsen the detection performance of weak targets at the receiver. To solve this problem, a method of partially correlation signal design for MIMO radar in the presence of interference is proposed in this paper. A set of orthogonal waveforms with constant modulus is weighted at the transmit antenna with the constraint of Peak-to-Average Power Ratios (PAPR), and the objective function is constructed by maximizing the Signal to Interference plus Noise Ratio (SINR) of the receive system. The Sequential Optimization Algorithm based on the Quasi-Newton Method (SOA-QNM) is proposed to find the optimal weights to improve the SINR of the system. Simulation results show that the proposed method can suppress the interference effectively and the emitted power of the transmitted signal can be adaptively concentrated on the direction of the target to improve the SINR performance.

Key words： MIMO radar Partially correlation signal design Interference suppression Peak-to-Average Power Ratios (PAPR)

Received: 01 June 2015 Published: 04 December 2015

PACS:

TN958

Fund:

The National Natural Science Foundation of China (61401204), Key Technology Research and Development Program of Jiangsu Province (BY2015004-03), Postdoctoral Science Foundation of Jiangsu Province (1501104C)

Corresponding Authors: LI Hongtao E-mail: liht@njust.edu.cn

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	CHEN Cheng
	LI Hongtao
	ZHU Xiaohua
	HU Heng
	ZENG Wenhao

Cite this article:

CHEN Cheng,LI Hongtao,ZHU Xiaohua等. Partially Correlation Signal Design for MIMO Radar in the Presence of Interference[J]. JEIT, 2016, 38(2): 442-449.

URL:

http://jeit.ie.ac.cn/EN/10.11999/JEIT150637 OR http://jeit.ie.ac.cn/EN/Y2016/V38/I2/442

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