| 摘要: |
| 给出了一种采用信干噪比准则的、集成了预多波束天线与LMS自适应天线的软件天线方案,该方案采用开关合并方法,把软件天线输出接到最大输出信噪比的算法输出,实现算法分集.在TD-SCDMA动态模型上对提出的方法进行了仿真,结果表明,采用集成软件天线方案的误码率性能要优于单纯的预多波束天线或LMS自适应智能天线.仿真过程考虑了用户来波方向和用户到基站距离的动态变化,以及功率控制算法和系统同步过程的影响. |
| 关键词: 移动通信 智能天线 软件天线 分集 自适应 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:November 20, 2006Revised:April 10, 2007 |
| 基金项目:广东省自然科学基金 |
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| An Algorithm for Software Integrated Smart Antennas in TD-SCDMA Systems |
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| Abstract: |
| A scheme for software antennas integrating the multi-beam antenna and the LMS adaptive antenna based on SINR criteria is given.By using the switching combination,the proposed software antenna connects its output to one of the two antennas with higher SINR,realizing the algorithm diversity.The simulation results obtained in TD-SCDMA dynamic model show that the bit error rate(BER)performance of the proposed software antenna is better than that of the multi-beam antenna or the LMS adaptive antenna.The dynamic shifting of the distance between users and the base and the changing of the user's direction of wave arrival,as well as the influence of the power control and the synchronizing,are considered in the simulation. |
| Key words: mobile communication smart antenna software antenna diversity adaptive |
