三值增量调制研究  

A study of ternary encoded delta-modulation

作　　者：金巧玲[1] 周畅[2] 

机构地区：[1]浙江大学信息学院光及电磁波研究中心,浙江杭州310058 [2]中国计量学院信息工程学院,浙江杭州310018

出　　处：《电路与系统学报》2007年第4期113-118,共6页Journal of Circuits and Systems

摘　　要：增量调制(△M)是在PCM方式的基础上发展起来的另一种模拟信号数字传输的方法。本文通过二值增量调制系统的分析,提出了三值增量调制系统的实现方法,并通过和二值系统的比较,得出量化噪声小,功耗低的优点。文章还进一步阐述了三值增量调制研究在实际应用中的意义和多值增量调制研究的前景。Delta-modulation （△M） is developed from Pulse Code Modulation （PCM）. It is another way to realize analog signal transmitted by digital mode. The way to realize ternary encoded delta-modulation system is presented through the analysis of binary delta-modulation system. By comparing the ternary and the binary encoded delta-modulation system we can find that the quantizing noise of ternary encoded delta-modulation system is lower and the lower power dissipation is its another virtue. We further expatiate the significance of ternary encoded delta-modulation in the practice and the foreground of the multi-encoded delta-modulation.

关 键 词：增量调制 量阶 三值 量化噪声 功耗 

分 类 号：TN914.32[电子电信—通信与信息系统]