现代移动通信中发射分集技术研究  

System Research on Transmit Diversity Techniques for Modern Mobile Communication

作　　者：卓建荣[1] 刘力军[2] 宫兵[3] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]河北经贸大学信息技术学院,河北石家庄050061 [3]大连职工大学,辽宁大连116033

出　　处：《无线电通信技术》2007年第6期13-15,共3页Radio Communications Technology

摘　　要：基于发送端多天线系统的发射分集技术是现代移动通信系统中抗信道衰落影响的一项关键技术。全面介绍发射分集技术的概念和实现方式,利用频率、时间、空间、极化、角度、调制等各种无线资源均可实现有效的发射分集方案,并且详细分析了各类典型的发射分集技术的特点和性能,理论分析有助于推广多天线发射分集系统在实际通信系统中的进一步应用。Transmit diversity based on multiple antennas at the transmitter is a critical technique to effectively mitigate channel fading caused by muhipath in the modem mobile communication system. Conception and realization of diversity is introduced comprehensively in this paper, which provides various transmit diversity schemes that make full use of various wireless resources, such as frequency, time, space, polarization, angle and modulation. Characteristic and performance of diversity is also analyzed in detail. Theoretical analysis can be applied in future mobile communication system employing multiple antennas transmit diversity approach.

关 键 词：正交发射分集 相位结合发射分集 空频发射分集 选择发射分集 空时发射分集 发射自适应阵 

分 类 号：TN929.5[电子电信—通信与信息系统]