摘要
TD_SCDMA标准采用了智能天线技术,提高其定位精度是目前亟待解决的关键问题.针对8阵元智能天线CDMA系统,提出了一种测向定位新方法.该方法根据预多波束智能天线的特点,利用接收信号的功率特性估计移动台方位角.该系统大大提高了同时定位用户数,计算复杂度小,适用于TD_SCDMA系统定位.仿真表明该系统定位精度较高.
The TD-SCDMA criterion adopts smart antenna, in which how to improve its location precision is the key problem. A new direction-finding method was proposed based on the CDMA system with eight-array smart antenna. According to the characters of switched beam antenna, it employed the characters of signal power to estimate the orientation angle. The system is simple in computation and suitable for TD-SCDMA. The capacity of the system is greatly increased. The simulation proves that the location precision of the system is higher.
出处
《应用科技》
CAS
2005年第12期4-6,共3页
Applied Science and Technology
基金
全国优秀博士学位论文作者专项基金资助项目(200037)
高等学校优秀青年教师教学科研奖励计划基金资助项目(2001-226)
关键词
测向
无线定位
智能天线
通信系统
direction finding
wireless location
smart antenna
communication system
