一种新的8DPSK调制解调方案  

A New Implementation Scheme of 8 DPSK Modulation and Demodulation

作　　者：朱彤[1] 

机构地区：[1]南京邮电学院通信工程系

出　　处：《南京邮电学院学报》1997年第4期49-53,共5页Journal of Nanjing University of Posts and Telecommunications(Natural Science)

基　　金：邮电部资助

摘　　要：提出一种新的８ＤＰＳＫ调制解调实现方案，该方案调制时频谱形成采用符号脉冲成形法，从根本上消除了频谱重叠，最大限度地降低了取样速率。解调时采用内插滤波和正交移相法，大大减少了计算量。系统性能提高，结构得到简化。A new implementation scheme of 8 DPSK modulation and demodulation is proposed in this paper. By using the symbol pulse shaping method in modulation, spectrum overlapping is eliminated, and sampling rate can be reduced to a minimum value. By using the interpolation and quadraticphaseshifting method in demodulation, computations are greatly reduced. The system performance is improved while the structure is simplified.

关 键 词：调制解调器 差分移相键控 频谱分析 

分 类 号：TN761.8[电子电信—电路与系统]