QPSK数字化解调相位模糊校正方法研究  

Study on phase ambiguity resolution of QPSK digital demodulation

作　　者：郭兴阳[1] 谢德芳[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《空军工程大学学报（自然科学版）》2001年第1期41-44,共4页Journal of Air Force Engineering University(Natural Science Edition)

摘　　要：结合 Q- 1 90 0维特比译码器同步状态监测功能 ,提出了一种校正 QPSK全数字相干解调的八种数据输出状态的新方法。对四相差分编译码的校正能力作出了理论上的分析。实验结果证明 。Based on the function of the synchronization status monitor of Q 1900, a new method for correcting output data status of all digital coherent QPSK demodulation is presented. The correcting capability of the quadriphase differential coding and decoding is also analysed in theory. The experiment results show that this method is of the complete performance which the quadriphase differential coding and decoding can not achieve.

关 键 词：相位模糊 维特比译码 差分编译码 

分 类 号：TN92[电子电信—通信与信息系统]