链路系统微分增益公式的建立和讨论  

A formula on system differential gain of link circuit

作　　者：钱毅 马晓军 

机构地区：[1]江苏扬州电视台

出　　处：《电视技术》1999年第1期59-62,共4页Video Engineering

摘　　要：从微分增益的定义式和基本物理概念出发，以系统各设备同一阶梯电平所对应的ＤＧ值为依据，建立了传输链路的系统微分增益ＤＧｓ的计算公式。Starting from the definition and physical concept of differential gain and based on a differential gain corresponding to the same step value in each equipment in the system, a formula for calculating the differential gain in a transmission link system is derived,and some issues related to CCIR and GB are discussed.

关 键 词：微分增益 副载波增益 系统微分增益 电视测量 

分 类 号：TN949.68[电子电信—信号与信息处理]