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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >MIMO radar pseudo-orthogonal waveform generation by a passive 1 x M mode-mixing microwave cavity
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MIMO radar pseudo-orthogonal waveform generation by a passive 1 x M mode-mixing microwave cavity

机译：通过无源1 x M模混合微波腔产生MIMO雷达伪正交波形

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摘要

Multiple Input Multiple Output (MIMO) Radar has many advantages compared with conventional Radars including improved target parameters estimation, improved angular resolution while keeping a small number of antennas. Nevertheless, these advantages can be obtained when probing simultaneously the scattering matrix with orthogonal transmit signals. Recently, a passive orthogonal waveform generation technique was introduced using a 1 x M ports Mode-Mixing microwave cavity whose transfer functions are uncorrelated. This approach makes MIMO Radar system able to satisfy transmit beamforming constraint with a cost-efficient architecture. In this paper, more conceptual clarifications are brought and the orthogonality metrics are assessed. Furthermore, the proposed method is experimentally compared with a conventional MIMO Radar based on frequency hopping waveforms.
机译：与传统雷达相比，多输入多输出（MIMO）雷达具有许多优势，包括改进的目标参数估计，改进的角分辨率，同时保留少量天线。然而，当用正交发射信号同时探测散射矩阵时，可以获得这些优点。近来，使用传递函数不相关的1 x M端口模式混合微波腔引入了无源正交波形生成技术。这种方法使MIMO雷达系统能够以具有成本效益的架构来满足发射波束成形约束。在本文中，将进行更多概念上的澄清，并评估正交性度量。此外，将所提出的方法与基于跳频波形的常规MIMO雷达进行了实验比较。

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