论文部分内容阅读
智能天线技术是应用于 TD- SCDMA系统的关键技术之一。智能天线系统从接收信号中获取方向信息 ,通过 DSP算法动态地产生波束 ,实时地跟踪移动用户的运动 ,从而达到有效抑制干扰、增加系统容量的目的。与传统的天线系统相比 ,智能天线能有效地消除邻近小区的干扰。简要介绍智能天线的概念 ,并提出一种新颖的用于智能天线系统的时空联合检测算法。同时给出该算法对于 TD- SCDMA系统上行链路在室外环境下的仿真结果。
Smart antenna technology is one of the key technologies used in TD-SCDMA system. The smart antenna system obtains the direction information from the received signal, generates the beam dynamically by DSP algorithm, and tracks the movement of mobile users in real time so as to effectively suppress the interference and increase the system capacity. Compared with the traditional antenna system, smart antenna can effectively eliminate the interference of neighboring cells. The concept of smart antenna is briefly introduced, and a novel spatio-temporal joint detection algorithm for smart antenna system is proposed. At the same time, the algorithm is given to simulate the uplink of TD-SCDMA system in outdoor environment.