摘要
TD SCDMA系统上行链路数据在基站通过天线接收后 ,接下来要进行信道估计和联合检测。如何高效得到准确的每个用户的信道冲激响应是后续基带算法实现的关键 ,如果信道估计算法太复杂和不够准确都将对后面的算法实现产生不利的影响 ,本文研究了低代价的 Steiner估计器 ,他是一种简单且高效的信道估计算法 ,通过利用特定方法构造的用户m idam ble码 ,Steiner估计器能同时估计出同一时隙内所有用户的信道冲激响应 ,本文对其在 TD SCDMA系统中的应用进行了算法仿真和性能分析。
In the uplink of TD-SCDMA,the data at the BS received from the antenna needs channel estimate and joint detection How to obtain rapidly and accurately the user′s channel impulse response is the key to the implement of algorithms behind If the channel estimate algorithm is too complicated and inaccurate,it must be a bad influence to the latter algorithms In this text,we have investigated Steiner estimator Steiner estimator is a simple and rapid algorithms for channel estimate and can jointly achieve all user′s channel impulse response at the same time and time slot This paper presents the computer simulation and performance analysis about the application of Steiner estimator in TDSCDMA
出处
《现代电子技术》
2005年第5期68-71,共4页
Modern Electronics Technique
