欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
提出了一种适用于阵列天线CDMA系统用户相干多径信号波达方向（DOA）估计的有效算法。该算法巧妙利用CDMA系统用户扩频序列的先验知识和特性,对用户相干多径信号进行解扩和匹配滤波处理,实现了对用户多径信号的有效分离和对多址干扰的抑制,对解扩后的用户多径信号采用DOA估计的综合方法进行波达方向的估计,对N元阵列,可同时估计出任一用户2N/3个相干多径信号的DOA。仿真结果表明该算法十分适合应用于CDMA类移动通信系统用户相干多径信号的波达方向估计。
英文摘要：
An effective direction of arrival （DOA） estimation algorithm was proposed for coherent muhipath signals of users of code division multiple access （CDMA） systems with antenna array. Firstly, by exploiting the intrinsic signature of user signals of CDMA system, the despreading and matched processing was carried out to separate the multipath signals of users, consequently the multiple-access interference was also decreased. After that the integrated DOA estimation method was applied to estimate the DOAs of coherent muhipath signals of users. With an N-element antenna array, the proposed algorithm is capable of estimating a number of 2N/3 DOAs of the coherent muhipath signals of a user. Simulation results show the effective of proposed DOA estimation algorithm.
同期刊论文项目
同项目期刊论文
期刊信息
位置：