Colocated MIMO Radar Transmit Beamspace Design for Randomly Present Target Detection
Colocated MIMO Radar Transmit Beamspace Design for Randomly Present Target Detection
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DOI：
10.1109/lsp.2014.2371241
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发表时间：
2015-07
影响因子：
3.9
通讯作者：
Haisheng Xu;Jian Wang;Jian Yuan;X. Shan
中科院分区：
文献类型：
--
作者：
Haisheng Xu;Jian Wang;Jian Yuan;X. Shan
在一般的检测问题中，目标或源可能存在于未知的方向。本文提出了一种基于MIMO雷达发射波束域（TB）技术的随机存在情况下的检测方案。首先推导了一种用于随机目标检测的平均似然比检测器。然后针对不同的情况提出了两种TB设计策略，以得到最优的检测器。数值结果表明，与传统方法相比，这些设计可以实现显着的检测增益。最后，理论和数值分析说明了收发器参数对检测性能的影响。
In general detection problems, targets or sources may be present at an unknown direction. This letter proposes a detection scheme for the randomly present case based on the MIMO radar transmit beamspace (TB) technique. An average likelihood ratio (ALR) detector for randomly present target detection is formulated firstly. Then two TB design strategies for different present cases are proposed accordingly to get optimal detectors. Numerical results demonstrate that a significant gain in detection can be achieved by these designs comparing to the conventional methods. Finally, theoretical and numerical analyses illustrate the influence of the transceiver parameters on detection performance.