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| 基于Alamouti编码方案的多天线系统的BER性能研究 | |
| 引用本文： | 庄铭杰,彭国祥,郭东辉.基于Alamouti编码方案的多天线系统的BER性能研究[J].中国航海,2005(2):42-46. |
| 作者姓名： | 庄铭杰 彭国祥 郭东辉 |
| 作者单位： | 1. 厦门大学,福建,厦门,361000;集美大学,福建,厦门,361021 2. 集美大学,福建,厦门,361021 3. 厦门大学,福建,厦门,361000 |
| 基金项目： | 福建省自然基金计划资助项目(编号:A0440002) |
| 摘 要： | 分析了采用Alamouti编码方案(ACS)的两发射天线和多接收天线系统(2Tx mRx)的工作原理,介绍了传输符号分离的一般分析方法。在平坦衰落信道中,导出了系统传输MPSK调制信号的比特误码率理论式。从理论上证明了采用ACS的2Tx mRx系统与同阶MRC接收分集有相同的分集增益。对最大似然(ML)判决估计器给出了易于理解和实现的仿真算法。理论和仿真结果均表明:ACS与相同的最大比合并(MRC)分集阶数的性能一样。 |
| 关 键 词： | 船舶、舰船工程 Alamouti编码方案 研究 比特误码率 瑞利衰落信道 |
| 文章编号： | 1000-4653(2005)02-0042-05 |
| 修稿时间： | 2005年3月4日 |
Study of BER Performance of Multiple Antennas System Based on ACS |
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| ZHUANG Ming-jie,PENG Guo-xiang,GUO Dong-hui.Study of BER Performance of Multiple Antennas System Based on ACS[J].Navigation of China,2005(2):42-46. | |
| Authors: | ZHUANG Ming-jie PENG Guo-xiang GUO Dong-hui |
| Institution: | ZHUANG Ming-jie 1,2,PENG Guo-xiang2,GUO Dong-hui1 |
| Abstract: | The working principles of two transmit antennas and multiple receiving antennas(2Tx- m Rx) system, in which the Alamouti coding scheme(ACS) is employed, is analyzed in the paper and the common analysis method of transmission symbols detected in receiver is introduced. In Rayleigh fading channel the system bit error rate(BER) theory expression for MPSK modulation is derived. It is verified theoretically that 2Tx- m Rx system using ACS and the equal order number Maximal-ratio combining (MRC) receiving diversity have same BER advantages. An understandable and available simulation algorithm for Maximum likelihood (ML) decision detector is given. The theoretical and simulated results show that ACS has the same performance of the equal diversity order MRC for transmission BER. |
| Keywords: | Ship Navy vessel engineering Alamouti coding scheme Research Bit error rate Rayleigh fading channel |
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