基于FPGA的自准直系统数据处理技术  

Research on data processing technology based on FPGA for auto collimating system

作　　者：王晔[1] 周志炜[1] 王元伟[1] 

机构地区：[1]中国电子科技集团公司第四十九研究所,黑龙江哈尔滨150001

出　　处：《传感器与微系统》2017年第2期46-48,52,共4页Transducer and Microsystem Technologies

摘　　要：提出一种基于现场可编程门阵列(FPGA)的CCD自准直测角系统。以FPGA作为系统处理核心;以自适应调节模块为CCD驱动发生器提供准确的波形时序;采用边缘检测算法获得图像的像元级边界;通过最小二乘拟合算法计算得到光斑圆心位置;利用VHDL语言以及MAX+plus II软件完成了系统设计。系统测试和实验表明:所设计的片上系统具有高精度、高集成度的特点。A CCD auto collimation angle measuring system based on field programmable gate array （FPGA） is proposed. In this system, FPGA is used as processor core of system ; using self-adaptive module to provide accurate wavefnrm timing for CCD driving generator; edge detection algorithm is utilized to obtain pixel level edge of image ; by using the least square fitting algorithm,circle centre position of facula is calculated;system design is completed with VHDL and MAX ＋ plusII software. System testing and experiment prove that the system has characteristics of high precision and high integration.

关 键 词：CCD 现场可编程门阵列 亚像元细分 边缘检测 片上系统 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]