基于ARM的线阵CCD数据采集与处理系统设计  

Design of Linear CCD Data Acquisition and Processing System Based on ARM

作　　者：吴大中[1] 彭昀昊 曹念文[1] 

机构地区：[1]南京信息工程大学,南京210044

出　　处：《激光杂志》2016年第7期62-65,共4页Laser Journal

基　　金：国家自然科学基金资助项目(41375044/D0503);江苏高校优势学科建设工程资助项目

摘　　要：为了使CCD(Charge coupled Device,CCD)数据采集系统兼有去除噪声的能力,以增大采集系统的使用范围,设计了以ARM为核心的数据采集与处理系统。以电荷耦合器件TCD132D传感器为例,设计了稳定的驱动电路。在分析CCD噪声的来源和特性后,采用多尺度分析的方法对随机噪声加以滤除。并依照小波分解与重构的原理,以ARM为平台编写了Mallat算法有关代码。实验结果表明,原始信号经处理后不仅抑制了相关噪声,而且保留了信号中的有用信息。In order to enable CCD data acquisition system to denoising to extend its application scope, data acquisition and processing system was designed with ARM as its core. A steady driving circuit was designed with array CCD TCD132D sensor as an example. Multi-scale analysis method was adopted to filter the noise after analyzed on the source and characteristics of CCD noise. Related code of Mallat algorithm, based on ARM platform, was written according to theory of wavelet decomposition and reconstruction. The experiment result showed that processed original signal can not only suppress noise ,but also keep useful information in its signal.

关 键 词：ARM 线阵 CCD 噪声 小波 

分 类 号：TN29[电子电信—物理电子学]