首页 | 本学科首页   官方微博 | 高级检索  
     检索      

基于以太网的模数转换精度全自动修正方法
引用本文:倪继锋,张程.基于以太网的模数转换精度全自动修正方法[J].上海师范大学学报(自然科学版),2013,42(5):465-469.
作者姓名:倪继锋  张程
作者单位:[1]上海师范大学信息与机电工程学院,上海201418 [2]上海航天控制技术研究所,上海200233
基金项目:上海师范大学校级项目(SK201128)
摘    要:理想的模数转换在直角坐标轴上应是一条过零点的直线.在实际工程中,由于信号处理电路及芯片性能等因素,对转换的精度产生了影响.因此需要采用线性拟合的方法加以修正,从而提高转换精度.提出一种基于以太网的模数转换全自动修正方法,采用软硬件配合的方式,只需轻点鼠标,即可自动完成所有模数转换通道的线性修正,并且计算出误差、信噪比和有效位数等指标,同时将线性修正系数存入模数转换卡板载的EEPROM中,与传统方法相比.此方法更方便、准确和高效,具有广泛的应用前景.

关 键 词:以太网  模数转换  线性拟合  全自动修正  EEPROM
收稿时间:2013/9/22 0:00:00

Auto correct method of AD converters precision based on ethernet
NI Jifeng and ZHANG Cheng.Auto correct method of AD converters precision based on ethernet[J].Journal of Shanghai Normal University(Natural Sciences),2013,42(5):465-469.
Authors:NI Jifeng and ZHANG Cheng
Institution:1. College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China; 2. Shanghai Aerospace Control Technology Institute, Shanghai 200233, China)
Abstract:Ideal AD conversion should be a straight zero-crossing line in the Cartesian coordinate axis system. While in practical engineering, the signal processing circuit, chip performance and other factors have an impact on the accuracy of conversion. Therefore a linear fitting method is adopted to improve the conversion accuracy. An automatic modification of AD conversion based on Ethernet is presented by using software and hardware. Just by tapping the n~ouse, all the AD converter channel linearity correction can be automatically completed, and the error, SNR and ENOB (effective number of bits) are calculated. Then the coefficients of linear modification are loaded into the onboard AD converter card's EEPROM. Compared with traditional methods, this method is more convenient, accurate and efficient, and has a broad application prospects.
Keywords:Ethernet  AD converters  linear fit  automatic correction  EEPROM
本文献已被 CNKI 维普 等数据库收录!
点击此处可从《上海师范大学学报(自然科学版)》浏览原始摘要信息
点击此处可从《上海师范大学学报(自然科学版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号