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arXiv 2308.03383eess.SP
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面向联合通信-雷达系统的能量高效时间调制波束赋形

Energy-efficient Time-modulated Beam-forming for Joint Communication-Radar Systems

Chengzhao Shan, Jiayan Zhang, Yongkui Ma, Xuejun Sha, Honglin Zhao, Jiankang Zhang, Lajos Hanzo

AI总结:

针对时间调制阵列联合通信-雷达系统因边带辐射导致能量损失的问题,本文设计单边带结构并推导能量效率闭式表达式,实现灵活可重构的能量高效波束控制。

摘要:

为缓解频谱资源短缺并降低无线系统的重量、体积和功耗,联合通信-雷达(JCR)系统已成为民用和军事领域关注的焦点。基于时间调制阵列(TMA)的JCR系统因其波束控制自由度高、成本低和精度高而成为一种有吸引力的解决方案。然而,其边带辐射会导致能量损失,这是一个固有缺陷。因此,基于TMA的JCR系统的能量效率优化至关重要,但现有的大多数TMA能量效率优化方法并不适用于JCR系统。为解决这些问题,本文设计了一种单边带结构,用于灵活可重构的能量高效TMA波束控制。首先,介绍了单边带TMA的一些预备知识。然后,推导出一个用于表征能量效率的闭式表达式。最后,通过仿真验证了理论结果。

英文摘要:

To alleviate the shortage of spectral resources as well as to reduce the weight, volume, and power consumption of wireless systems, joint communication-radar (JCR) systems have become a focus of interest in both civil and military fields. JCR systems based on time-modulated arrays (TMAs) constitute an attractive solution as a benefit of their high degree of beam steering freedom, low cost, and high accuracy. However, their sideband radiation results in energy loss, which is an inherent drawback. Hence the energy-efficiency optimization of TMA-based JCR systems is of salient importance, but most of the existing TMA energy-efficiency optimization methods do not apply to JCR systems. To circumvent their problems, a single-sideband structure is designed for flexibly reconfigurable energy-efficient TMA beam steering. First, some preliminaries on single-sideband TMAs are introduced. Then, a closed-form expression is derived for characterizing the energy efficiency. Finally, the theoretical results are validated by simulations.

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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