Computational Efficient DOA, DOD, and Doppler Estimation Algorithm for MIMO Radar
Computational Efficient DOA, DOD, and Doppler Estimation Algorithm for MIMO Radar
复制标题
适用于 MIMO 雷达的计算高效 DOA、DOD 和多普勒估计算法
DOI：
10.1109/lsp.2018.2879546
复制
发表时间：
2019-01-01
影响因子：
3.9
通讯作者：
Gui, Ronghua
中科院分区：
文献类型：
--
作者：
Xu, Jian;Wang, Wen-Qin;Gui, Ronghua
多输入多输出(MIMO)雷达的波达方向(DOA)、离开方向(DOD)和多普勒联合估计通常由于高维搜索过程而难以实现。本文提出了一种计算效率较高的MIMO雷达DOA、DOD、DOA联合估计算法，该算法采用非结构化极大似然方法，基于扩展不变性原理，通过三个一维搜索过程依次估计出多普勒、DOD和DOA。数值结果验证了该算法的有效性及其相对于传统最大似然算法的优越性。
Joint direction-of-arrival (DOA), direction-of-departure (DOD), and Doppler estimation for multiple-input multiple-output (MIMO) radar usually are too time-consuming to implement because of high-dimensional searching procedures. This letter proposes a computational efficient algorithm for MIMO radar joint DOA, DOD, and Doppler estimation, which adopts an unstructured maximum likelihood method to sequentially estimate the Doppler, DOD, and DOA by three one-dimensional searching procedures based on the extended invariance principle. Numerical results validate the effectiveness together with its superiorities over conventional maximum likelihood algorithms.