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中文摘要：
空时编码方案中,空时块码相比空时格码具有更简单的检测机制。为了避免繁琐的信道估计,降低接收机的复杂度,把常规的差分检测方法推广到多天线系统,同时再利用正交旋转的性质,可以级联卷积码提高系统可靠性。在Matlab环境下对系统进行了仿真,验证了所提出的级联检测处理方法,结果表明通过级联的检测机制确实能够带来性能的提升。
英文摘要：
In the schemes of Space-Time Coding,Space-Time Block Code has easier detection method than Space-Time Trellis Code. The conventional differential detection method is generalized to the MIMO system so that channel estimation is avoided and the complexity of the receiver is reduced.To enhance the reliability,orthogonal rotation is utilized to concatenate the convolutional code for the system. Simulation under the Matlab environment is carried out to verify the proposed algorithm. The results indicate the performance is improved when cascading convolutional code.
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