为了提升通信系统的有效性和可靠性,在不增加系统带宽和发射功率的情况下,采用空时编码在短波慢、非选择性Rayleigh衰落信道模型的基础上,对Alamouti空时码的性能进行了分析和仿真。结果表明,Alamouti码可以有效地降低短波通信系统的误码率。
Space-time block codes can improve the reliability and effectivity of communication systems without addi- tional bandwidth or extra transmitting power. The performance of Alamouti Space-time block codes is analyzed and simulated on the basis of a slow and non-selective Rayleigh fading HF ehannel model. Simulation results show that the Alamouti spaee-time block codes can achieve a lower BER.