一种新型的低旁瓣MIMO雷达发射波形设计方法

张博; 戴奉周; 冯大政

doi:10.11999/JEIT171069

一种新型的低旁瓣MIMO雷达发射波形设计方法

doi: 10.11999/JEIT171069

基金项目:

国家自然科学基金(61671359)，中央高校基本科研业务费(JB180210)

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- 被引次数: 0
出版历程
- 收稿日期: 2017-11-16
- 修回日期: 2018-04-16
- 刊出日期: 2018-08-19

A New Method for the Design of Low Sidelobe Transmit Waveform of MIMO Radar

Funds:

The National Natural Science Foundation of China (61671359), The Fundamental Research Funds for the Central Universities of China (JB180210)

摘要

摘要: 该文通过对经典低旁瓣MIMO雷达发射波形设计方法的改进，提出一种新型的低旁瓣MIMO雷达发射波形设计方法。该方法首先引入发射波形主瓣下界、主瓣上界两个参数，并设定主瓣下界的值；其次分别以最小化峰值旁瓣、最小化积分旁瓣为目标函数，以发射信号协方差矩阵半正定、各阵元发射信号恒功率为约束条件，在此基础上，在约束条件中加入对主瓣波动的限制，建立半正定规划优化问题，并且可通过设定不同的主瓣上界的值来控制主瓣波动、抑制旁瓣；最后利用一次凸优化算法得到全局最优解。仿真结果表明，该方法在只需求解一次凸优化问题的前提下，所设计波形旁瓣降低且可控。
- MIMO雷达 /
- 发射波形设计 /
- 低旁瓣
Abstract: A novel low sidelobe method is proposed through the improvement of the classical method of MIMO radar transmit waveform design. Firstly, two parameters, involving the lower boundary and the upper boundary of the mainlobe of the transmitted waveform, are introduced. While the value of the lower boundary is given. Secondly, a semidefinite programing optimization problem is established, whose objective function is minimization of peak-sidelobe or integrated-sideloble. The transmit waveform covariance is semi-positive and the signal power of each array element is fixed. Further, the restriction on the mainlobe fluctuation is added to the constraint of the optimization problem. Whats more, if the upper boundary is changed, the mainlobe fluctuation and sidelobe will be changed simultaneously. Finally, only once convex optimization algorithm is used to obtain the global optimal solution. The simulation results show that the proposed method has the advantages that the sidelobe is lower and can be contolled
- MIMO radar /
- Transmit waveform design /
- Low sidelobe

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参考文献(20)

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