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arXiv 2103.04851eess.SP
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基于波形相关优化的MIMO雷达空间-距离- ISLR折衷

Spatial- and Range- ISLR Trade-off in MIMO Radar via Waveform Correlation Optimization

Ehsan Raei, Mohammad Alaee-Kerahrood, M. R. Bhavani Shankar

摘要:

针对认知共址多输入多输出(MIMO)雷达系统,设计了一组同时最小化空间和距离综合旁瓣电平比(ISLR)的发射波形。该设计问题被配制成一个双目标帕累托优化的波形,即总发射功率,峰均功率比(PAR),常数模,和离散相位字母表的实际约束下。提出了一种基于坐标下降(CD)的方法,在该方法中,在每一个单一的变量更新的算法,我们得到的单变量优化问题的解决方案。本文的新颖性来自于推导出一个灵活的波形设计问题,适用于4D成像MIMO雷达,直接在不同的约束集进行优化。同时优化导致两个ISLR之间的权衡和仿真结果表明显着改善所提出的方法提供的权衡。

英文摘要:

This paper aims to design a set of transmitting waveforms in cognitive colocated Multi-Input Multi-Output (MIMO) radar systems considering the simultaneous minimization of spatial- and the range- Integrated Sidelobe Level Ratio (ISLR). The design problem is formulated as a bi-objective Pareto optimization under practical constraints on the waveforms, namely total transmit power, peak-to-average-power ratio (PAR), constant modulus, and discrete phase alphabet. A Coordinate Descent (CD) based approach is proposed, in which at every single variable update of the algorithm we obtain the solution of the uni-variable optimization problems. The novelty of the paper comes from deriving a flexible waveform design problem applicable for 4D imaging MIMO radars which is optimized directly over the different constraint sets. The simultaneous optimization leads to a trade-off between the two ISLRs and the simulation results illustrate significantly improved trade-off offered by the proposed methodologies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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