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中文摘要：
在TD-SCDMA系统中，针对传统的Steiner信道估计算法因背景噪声使得估计精度受到影响的问题，以Steiner算法为基础，提出了一种基于门限处理的信道估计算法，该算法以次强径功率为参考设定门限，省略小于此门限的其他径。通过上行链路的模拟仿真表明，该信道估计算法的信道响应更接近理想值，有利于改善系统的输出性能。
英文摘要：
The channel estimation algorithm is used to predict the impulse response in TD-SCDMA system, since the realization of joint detection and other technologies depend on the basis of an accurate estimation of channel identity. Steiner estimation algorithm has lower cost , but the accuracy is affected by the noise in the channel. In this paper, a threshold processing algorithm is proposed, which is based on Steiner algorithm . Simulation results from uplink show that its channel impulse responses are closer to that of ideal ones. The approach is advantageous to the improvement of the system output performance.
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