【摘要】 针对DS-CDMA系统的多用户环境,提出了一种有效的DOA估计算法.该算法首先分离出每一条路径上的信息,然后通过矩阵点除运算,高效地实现了DOA估计.算法避免了特征值分解这类复杂运算,同时也不需要估计信源个数并自动实现了路径配对,是一种简便易行的高精度算法.仿真实验验证了算法的有效性.更多还原

【Abstract】 In this paper, an effective DOA estimation algorithm is presented for DS-CDMA systems under multi-user environment. First, the information associated with each path is extracted. Then, DOA’s are efficiently resolved using the proposed element-wise division operations. The algorithm requires neither complex eigenvalue decomposition operations nor source number estimation. In addition, paths pairing are matched automatically. Generally speaking, the proposed algorithm is high in resolution and easy to implement in practice. Simulations confirm the effectiveness of the algorithm.更多还原