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中文摘要：
提出了一种基于ICA技术的STBC盲信号检测方案，建立了适用于ICA的特定STBC系统模型，分析比较了几种典型的ICA算法的分离性能及收敛速度．理论分析表明，ICA盲接收技术的应用可以在一定程度上替代基于信道估计的传统方法，增强系统对信道估计错误的稳健性．结合具体的STBC系统，仿真比较了基于ICA算法的不同方案的分离性能，对其中表现较差的等变化自适应分离（EASI）算法作出改进，并仿真验证了改进方案的正确性．
英文摘要：
This paper analyses the essential structure of STBC system and establishes a specific model suitable to ICA . Several traditional ICA algorithms are adopted to make a comparison. The robustness against channel estimation errors can be acquired by using the ICA based schemes. Simulation results demonstrate the validity of proposed approaches, and after the comparison among different ICA based detection schemes, the improvement of EASI algorithm is proposed to achieve better performance.
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