光纤光栅汽车衡动态模型参数估计称重算法  

Dynamic Weighing Algorithm of Model Parameter Estimation in a Fiber Grating Scale

作　　者：李维来[1] 潘建军[1] 朱莉 

机构地区：[1]武汉理工大学光纤传感技术与信息处理教育部重点实验室,武汉430070

出　　处：《武汉理工大学学报》2008年第2期140-142,共3页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(60537050)

摘　　要：介绍了光纤光栅汽车称重系统的基本结构,并在振动理论的基础上建立了汽车与该称重系统耦合的动态数学模型,利用最小二乘递推算法(RLS)实现模型参数的在线估计,计算软件采用Matlab的M语言。对比使用此方法处理光纤光栅传感器的实际测量数据与使用4阶自回归模型算法处理同样的数据,前者的轴重相对误差值比后者要精确2—5倍。A structure of fiber grating weight-in-motion system,and a dynamically mathematical model which couples the vehicles and WIM system according to the theory of vibration mechanics were introduced.The data processing of this method was based on the recursive least squares(RLS) algorithm and realized online parameter estimation.The software of algorithm was M language of Matlab.Comparing the results of this algorithm with the results of AR4,the precision could be improved from 2 times to 5 times.

关 键 词：动态称重 光纤光栅 模型 参数估计 最小二乘递推算法 

分 类 号：TH715.1[机械工程—测试计量技术及仪器]