摘要
滚降系数是M-PSK信号的一个重要参数,它刻画了信号的带宽和包络的起伏程度。从理论上分析了接收机中滚降系数不匹配对M-PSK信号误码性能的影响,结果表明此影响非常小。计算机仿真证实了上述推导的正确性。这个结论对于非协作通信中接收机的设计有重要的指导意义。
Rolloff-factor is a key parameter of M-PSK signals. It depicts the bandwidth and envelope fluctuation of the signals. This paper analyzed the effect of rolloff-factor error on the BER performance in the receiver with a theoretical method. The result shows the effect is very small. Computer simulations prove the correction of the derivation. It is useful for the receiver design in non-cooperative communication.
出处
《通信学报》
EI
CSCD
北大核心
2003年第10期125-130,共6页
Journal on Communications
基金
清华大学"985"项目(A-2-09)
