| 双基地MIMO雷达目标角度快速跟踪算法 |
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| 引用本文： | 张正言,李小波,徐旭宇,黄超. 双基地MIMO雷达目标角度快速跟踪算法[J]. 信号处理, 2016, 32(6): 701-706. DOI: 10.16798/j.issn.1003-0530.2016.06.008 |
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| 作者姓名： | 张正言 李小波 徐旭宇 黄超 |
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| 摘 要： | 针对双基地多输入多输出（MIMO）雷达目标角度跟踪问题，提出了一种低复杂度目标角度跟踪算法。首先估计出相邻时刻接收数据协方差矩阵的差；然后推导了协方差矩阵的差与目标角度差的关系，并且得到了相应的公式；最后通过最小二乘法得到相邻时刻的角度差，估计出目标的收发角度。算法避免了协方差矩阵的分解，实现了相同时刻收发角度的自动配对，降低了计算复杂度。由于算法能够实现相邻时刻的角度的自动相关，不需要复杂度高的角度相关算法，能够实现目标角度的快速跟踪，为双基地MIMO雷达的实际应用提供理论支持。
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| 关 键 词： | 双基地MIMO雷达 低复杂度 角度跟踪 信号子空间 |
| 收稿时间： | 2015-05-18 |
Target Angle Rapid Tracking Algorithm for Bistatic MIMO Radar |
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| Abstract: | A low complexity angle tracking algorithm is proposed for the problem of tracking the angle of targets in bistatic multiple input multiple output (MIMO) radar. Firstly the difference between previous and current data covariance matrices is estimated. Secondly, the relationship between the different of covariance matrices and the different of target angle is derived and the corresponding formula is got. Last the different between previous and current angle is got by least square method (LMS). Then the direction of departure (DOD) and direction of arrival (DOA) of singles estimation is achieved. This method avoids the decomposition of the covariance matrix and reduces the computational complexity, which realizes DOD and DOA of the same moment automatic pairing. Since the algorithm can realize the neighboring time angle automatically associated, it does not require high complex angle automatically associated algorithms and realizes the target angle rapid tracking, which provides the technical support for the practical application of MIMO radar. |
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