CAJ | 학술논문

为提高线阵CCD的测量精度，提出了一种以STM32为核心控制器的尺寸测量系统。采用STM32编程实现对线阵CCD的驱动，利用视频专用AD9826芯片中的相关采样等特殊功能实现对CCD输出信号的噪声处理和模数转换。文章详细阐述了系统中CCD驱动、抑制噪声的相关采样、亚像素定位的细分算法等关键技术的实现原理。该设计既简化了此类系统的硬件设计又便于调试控制参数、实现复杂的细分运算。
위제고선진CCD적측량정도，제출료일충이STM32위핵심공제기적척촌측량계통。채용STM32편정실현대선진CCD적구동，이용시빈전용AD9826심편중적상관채양등특수공능실현대CCD수출신호적조성처리화모수전환。문장상세천술료계통중CCD구동、억제조성적상관채양、아상소정위적세분산법등관건기술적실현원리。해설계기간화료차류계통적경건설계우편우조시공제삼수、실현복잡적세분운산。
In order to improve the measure precision of linear CCD , this paper proposes a precision measuring instrument with STM32 as the core controller design scheme .The linear CCD drive is realized by programming with STM 32.The special AD9826 chip is used for the noise processing and analog-to-digital conversion of CCD output signal which has relevant sampling and other special function.The paper describes CCD drive , relevant sampling technology , noise, sub-pixel positioning of the segmentation algorithm and key technology etc .This greatly simplifies the design of such instrument hardware and achieves debuging the control parameters and the implementation of complex segmentation calculation .