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arXiv 2203.09571eess.SP
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双功能雷达-通信系统发射预编码器设计方法

Transmit Precoder Design Approaches for Dual-Function Radar-Communication Systems

Jacob Pritzker, James Ward, Yonina C. Eldar

摘要:

随着射频(RF)天线、组件和处理能力的增加,正在实现从公共孔径执行多个RF系统功能的能力。从同一系统进行雷达和通信在车辆、健康监测和监视设置中可能有用。本文研究了多输入多输出(MIMO)双功能雷达通信(DFRC)系统,其中雷达和通信模式使用不同的基带波形。发射预编码器提供雷达和通信模式之间的空间复用和功率分配。针对雷达探测模式,提出了多预编码器的设计方法。该方法的目的是加强对雷达波形的依赖感测的目的,产生改进的近似所需的模糊度函数在文献中发现的先前的方法。这些方法还通过仿真显示,以实现设计灵活性,允许优先级的子系统和规范的期望水平的雷达或通信性能。

英文摘要:

As radio-frequency (RF) antenna, component and processing capabilities increase, the ability to perform multiple RF system functions from a common aperture is being realized. Conducting both radar and communications from the same system is potentially useful in vehicular, health monitoring, and surveillance settings. This paper considers multiple-input-multiple-output (MIMO) dual-function radar-communication (DFRC) systems in which the radar and communication modes use distinct baseband waveforms. A transmit precoder provides spatial multiplexing and power allocation among the radar and communication modes. Multiple precoder design approaches are introduced for a radar detection mode in which a total search volume is divided into dwells to be searched sequentially. The approaches are designed to enforce a reliance on radar waveforms for sensing purposes, yielding improved approximation of desired ambiguity functions over prior methods found in the literature. The methods are also shown via simulation to enable design flexibility, allowing for prioritization of either subsystem and specification of a desired level of radar or communication performance.

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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