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介绍了适用于瑞利快变衰落信道不需信道参数估计的差分空时码研究进展。根据差分空时码的设计原理及性能标准,综合比较了现有方案的特点,揭示了这些方案之间的联系,并对差分空时码技术的应用前景进行了展望。
The research progress of differential space-time codes suitable for Rayleigh fast-fading channels without channel parameter estimation is introduced. According to the design principles and performance standards of differential space-time codes, the characteristics of the existing schemes are compared and the relations between these schemes are revealed. Finally, the application prospect of differential space-time codes is prospected.