DCME中传真解调的载波同步、定时提取研究  

Carrier Recovery and Timing Extraction of Facsimile Signal Demodulation in DCME

作　　者：陈慧剑[1] 胡金波[1] 

机构地区：[1]南京邮电学院通信工程系,江苏南京210003

出　　处：《南京邮电学院学报（自然科学版）》2002年第4期71-75,共5页Journal of Nanjing University of Posts and Telecommunications

摘　　要：介绍了如何将判决反馈QAM载波恢复环技术、峰值检测法用于DCME(DigitalCircuitMultipli cationEquipment,数字电路倍增设备)传真解调中的载波恢复和定时提取,并在此基础上提出了改进的联合解调算法。This paper mainly discusses how to apply decision feedback QAM carrier recovery loop to carrier recovery and apply peak value detection method to timing extraction in DCME facsimile signal demodulation. An improved joint demodulation algorithm is also presented.

关 键 词：DCME 载波同步 定时提取 数字电路倍增设备 传真解调再调制 

分 类 号：TN917.81[电子电信—通信与信息系统] TN7[电子电信—信息与通信工程]