中文摘要：

针对短波无线信道的特点给出了相关衰落条件下短波MIMO信道的数学模型，matlab仿真分析了短波相关信道下，不采用预编码、SVD预编码以及GMD预编码时MGSTC编码的BER性能。仿真结果表明．相关衰落极大降低了系统BER性能，SVD预编码以整体BER性能为代价提升了系统抗衰落特性，GMD预编码提升系统抗相关衰落特性很少。

英文摘要：

Considering the characteristic of HF channel, this paper created a HF-MIMO channel model in correlated fading, analyzed BER performance of MGSTC with no preceding, SVD preceding and GMD preceding in correlated fading by matlab simulation. The result showed correlated fading reduced BER performance greatly, SVD preceding could improve the system resistance against correlated fading with the sacrifice of system BER performance, and GMD preceding improved the system resistance against correlated fading barely.