基于FPGA的高重频激光模拟器频率控制  

The Frequency Control of High-Repetition Rate Laser Simulator Based on FPGA

作　　者：连文泽[1] 陈康[1] 韩春生[1] 李番[1] 

机构地区：[1]中国电子科技集团公司第二十七研究所,郑州450047

出　　处：《电光系统》2010年第2期15-17,共3页Electronic and Electro-optical Systems

摘　　要：由于高重频激光模拟器激光频率变化范围大、精度高，通常采用的计数器分频固定频率时钟的方法无法满足系统要求．本文设计了一种基于FPGA片内PLL＋数据库的实现方式，通过分频变频时钟可以大幅度提高激光频率在变化范围内的精度。Because of the wide dynamic scope and high precision of laser frequency of high repetition rate laser simulator, the conventional frequency splitting menthod based on a fixed frequency clock has become unsatisfied to system need. A method based on FPGA built-in PLL ＋ database is described in this paper,with which by frequency division to the variable fequeney clock, the laser frequency accuracy can be increased remarkably within the dynamic scope.

关 键 词：频率控制 FPGA 数据库 变频时钟 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]