激光频域畸变数据非均匀采集  

Nonuniform acquisition of distorted data in laser frequency domain

作　　者：李瑞俊[1] 高霞[1] 李俊芳[1] LI Ruijun;GAO Xia;LI Junfang(College of Computer Science,JiNing Normal University,Ulanqab 012000,China)

机构地区：[1]集宁师范学院,内蒙古乌兰察布012000

出　　处：《激光杂志》2021年第6期134-138,共5页Laser Journal

基　　金：内蒙古自治区高等学校科学研究项目(No.NJZY17353)。

摘　　要：在数据采集过程中,容易发生数据丢失和存储硬件损坏。为了突破传统采样定理的局限性,实现原始数据的无失真恢复,提高数据存储信息量,提出了激光频域畸变数据非均匀采集的研究。首先,获得激光频域的畸变数据点矢量,建立畸变数据表达式,并协同表示畸变数据特征的概率;其次,为了改善均匀采集的时间函数和时间间隔的缺点,研究了非均匀采集的原理,得到了非均匀采集的间隔和频率,消除了栅栏现象;最后,通过数字滤波器对数据进行滤波,提高了采集效率,确定了非均匀数据采集的规则,定义了准则函数,建立了采集模型。仿真结果表明,该方法提高了数据采集速度,提高了数据采集量,减少了冗余数据。In the process of data acquisition,it is easy to lose data and damage storage hardware.In order to break through the limitation of the traditional sampling theorem,realize the undistorted recovery of the original data,and improve the amount of data storage information,a study on the non-uniform collection of the distorted data in the frequency domain of laser is proposed.Firstly,the distortion data point vector of laser frequency domain is obtained,the distortion data expression is established,and the probability of the distortion data characteristics is expressed collaboratively;secondly,in order to improve the time function and time interval of uniform acquisition,the principle of non-uniform acquisition is studied,the interval and frequency of non-uniform acquisition are obtained,and the barrier phenomenon is eliminated;finally,the data is processed by digital filter Filtering improves the collection efficiency,determines the rules of non-uniform data collection,defines the criterion function,and establishes the collection model.Simulation results show that the method improves the speed of data acquisition,increases the amount of data acquisition,and reduces redundant data.

关 键 词：激光频域 畸变数据 非均匀采集 栅栏现象 数字滤波器 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]