摘要
π／４－ＤＱＰＳＫ是ＱＰＳＫ的改进方式，具有较高的频谱效率和功率效率。本文叙述了π／４－ＤＱＰＳＫ调制器和基带差分解调器的硬件实现方法，理论分析和实验测定了在移动通信环境中的性能。
DQPSK which is a modification for QPSK modulation possesses higher spectrum and pow-er efficiency.This paper discusses the hardware implementations of π/4-DQPSK modulator and basebanddifferential demodulator, theoretically analyzes and experimentally measures the performance of π/4-DQP-SK in mobile environment.
出处
《电信科学》
北大核心
1994年第8期41-46,共6页
Telecommunications Science
关键词
移动通信
基带差分解调
数字调制
digital mobile communication,π/4-DOPSK modulation,baseband differential demodulation
