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Waveform multiplexing using chirp rate diversity for chirp-sequence based MIMO radar systems

机译:基于线性调频序列的MIMO雷达系统中使用线性调频率分集的波形复用

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MIMO radar systems create a large virtual aperture to enhance the angular resolution. As a multiplexing scheme often the time-division multiplexing (TDM) procedure is chosen. The drawbacks are a reduced maximal unambiguously detectable Doppler frequency and the need to correct a phase error in angle estimation for relative radial velocities. To overcome these disadvantages a multiplexing scheme is proposed which uses different chirp rates. Every transmitting antenna is active at the same time but can be distinguished due to the different slopes of the frequency ramps.
机译:MIMO雷达系统创建一个大的虚拟孔径,以增强角度分辨率。作为多路复用方案,通常选择时分复用(TDM)过程。缺点是降低的最大明确可检测的多普勒频率,并且需要校正相对径向速度的角度估计中的相位误差。为了克服这些缺点,提出了一种使用不同啁啾率的复用方案。每个发射天线同时处于活动状态,但是可以通过频率斜坡的不同斜率来区分。

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