CAJ | 학술논문

　　该文提出了一种基于2维矢量接收阵列的双基地MIMO雷达系统多目标ADOD(Azimuth Direction Of Departure)， ADOA(Azimuth Direction Of Arrival)和EDOA(Elevation Direction Of Arrival)联合估计算法。雷达发射端采用均匀标量线阵，接收端将常规矢量阵元的每个电磁偶极子相互分离构成2维接收阵列。算法通过张量因子分解获取各流形矩阵，并利用ESPRIT算法估计目标的ADOD。文中给出了接收阵列的一种特定阵元排列方式，并改进了矢量叉积法用于估计目标的2D-DOA。与传统方法相比，该文所用阵列结构可通过扩展接收阵列孔径提高雷达的角度估计性能，相互分离的偶极子弱化了传统矢量阵的天线互耦效应。相应算法避免了谱峰搜索，能够自动配对，仿真实验证明了算法的有效性。
　　해문제출료일충기우2유시량접수진렬적쌍기지MIMO뢰체계통다목표ADOD(Azimuth Direction Of Departure)， ADOA(Azimuth Direction Of Arrival)화EDOA(Elevation Direction Of Arrival)연합고계산법。뢰체발사단채용균균표량선진，접수단장상규시량진원적매개전자우겁자상호분리구성2유접수진렬。산법통과장량인자분해획취각류형구진，병이용ESPRIT산법고계목표적ADOD。문중급출료접수진렬적일충특정진원배렬방식，병개진료시량차적법용우고계목표적2D-DOA。여전통방법상비，해문소용진렬결구가통과확전접수진렬공경제고뢰체적각도고계성능，상호분리적우겁자약화료전통시량진적천선호우효응。상응산법피면료보봉수색，능구자동배대，방진실험증명료산법적유효성。
A novel algorithm for estimation of Azimuth Direction Of Departure (ADOD), Azimuth Direction Of Arrival (ADOA) and Elevation Direction Of Arrival (EDOA) based on bistatic MIMO radar with electromagnetic vector sensors is presented. The linear transmit array composes of multiple scalar sensors with uniform distribution, while the 2D receive array consist of several electromagnetic vector sensor subarrays. Each subarray contains six orthogonally oriented but spatially noncollocating dipoles/loops. With the application of tensor decomposition, the transmit/receive array manifolds are estimated. From the former, a group of multi-targets’ DODs are calculated with an ESPRIT algorithm. An improved vector cross product direction finding algorithm is presented to estimate the targets’ 2D-DOAs, based on the 2D receive array constructed with a presented arrangement of subarrays. The proposed array configuration has great advantage, in spatial aperture extending to refine the estimation accuracy, and in reducing mutual coupling. Corresponding algorithm avoid peak searching and parameter pairing processes. Simulation results are presented to verify the effectiveness of the proposed method.