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A DOA Estimation Method in TD-SCDMA System

机译：TD-SCDMA系统中的DOA估计方法

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摘要

The direction of arriving (DOA) estimation algorithms used in TD-SCDMA system to realize DOA detection would result in a large number of mathematical operations. Meanwhile, the number of DOA detection would be restricted by the number of array elements of a smart antenna. To solve this problem, a new method for DOA detection based on the orthogonal mid-amble sequence would be presented in this paper, which can be employed in system with beam-forming by the method of amplitude weighting of base-band signal (AWB). The directional transmitting of smart antenna can be achieved by this method without any method of conventional frequency spectrum search or DOA estimation algorithms. The parameters of DOA for mobile station could be detected by the new method, which could be used in a system with directional transmitting directly. The working principle of this new DOA estimation method would be introduced in this paper as well as its proving.
机译：TD-SCDMA系统中用于实现DOA检测的到达方向（DOA）估计算法将导致大量数学运算。同时，DOA检测的数量将受到智能天线的阵列元件的数量的限制。为了解决这个问题，本文提出了一种基于正交中间码序列的DOA检测新方法，该方法可以通过基带信号幅度加权（AWB）方法在波束赋形系统中使用。 。通过这种方法可以实现智能天线的定向发射，而无需任何常规频谱搜索或DOA估计算法的方法。新方法可以检测出移动站的DOA参数，该参数可以在直接定向传输的系统中使用。本文将介绍这种新的DOA估计方法的工作原理及其证明。

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