摘要
本文介绍了一种新型的数字倍频器，它具有许多不同于已有倍频器的特性。其特性有：（1）跟踪时间为一个输入信号周期；（2）输出信号和输入信号同步；（3）倍频系数可由程序进行设置等。由于在这种倍频器中使用了校正补偿电路，使其输出信号的相对误差与倍频系数无关。文中对新型数字倍频器的设计思路及实现方法作了较详细介绍，解释了有时会丢掉最后一个输出脉冲的原因，且提出了相应的解决方法。同时，对这一新型数字倍频器进行了相应的实验验证。
This paper presents a novel digital frequency multiplier having many features not yet found together in existing multiplier. For example, (1) its acquisition time is within one period of the input signal (2) the output signal is synchronized with its input signal; (3)its multiplication factor can be set by the program. Because the rectification circuit is used, the relative frequency error on its output signal is independent of the multiplication factor. The design and implementation of this kind of multiplier is introduced. This paper explains the reason for missing the last output pulse after a certain interval of time, and presents the relative implementation. At last tests of this kind of new multiplier are given.
出处
《电子测量与仪器学报》
CSCD
1996年第4期24-29,共6页
Journal of Electronic Measurement and Instrumentation
关键词
数字
倍频器
累积误差
自适应
Digital frequency multiplier
Accumulated error
Rectification
Synchronization
