针对准静态受遮蔽的 Rician 衰落信道,在收端已知信道状态信息的条件下,文中分析了空时格码的性能.推导了码字差相关阵为对角阵的空时格码系统的成对差错概率的确切表达式,得到了相应空时格码在准静态受遮蔽的 Rician 衰落信道中的性能上界。仿真结果表明,在遮蔽不太严重的信道中,文中得到的 union 界与相应编码系统的实际性能有很好的近似度。 For the quasi-static shaded Rician fading channel, the performance of space-time trellis codes is analyzed under the condition of receiving the known channel state information.The derivation of space-time trellis codes with diagonal matrix The exact expression of the paired error probability results in the upper bound of the performance of corresponding space-time trellis codes in a quasi-static shaded Rician fading channel. The simulation results show that in the less obscured channel, the union field obtained in this paper has a good approximation to the actual performance of the corresponding coding system.