摘要
ITU TG 766建议提出在DCME设备中需加入传真解调与再调制,按照V 21建议发送的二进制编码信令,是用来确定传真业务是否出现和调制类型等信息的。文中介绍了采用一种自适应滤波的方法对V 21信号进行解调,以判断传真信号的出现,并给出了与传统自有关解调方法相比较的仿真结果。
The technology named as'facsimile demodulation/remodulation for DCME'is presented in ITU-T Recommendation G.766.Binary coding signal according to V.21 Recommendation is used to get the information of facsimile appearance and modulation style. Adaptive filter method of demodulation of V.21 signal is put forward and discussed.
出处
《电力系统通信》
2004年第3期37-39,共3页
Telecommunications for Electric Power System
