动态测量系统精度损失溯源方法研究

Methods research about accuracy loss tracing of dynamic measurement system

文中提出了利用动态测量系统在不同测量时期的误差量值变化来获得系统的损失精度的方法。利用小波神经网络对动态测量系统的精度损失进行溯源,将测试系统在一定时期总的精度损失分解并溯源到系统内部各组成单元,掌握系统内部各单元的精度损失情况,为系统的精度保持和系统的优化设计提供依据。最后对一仿真系统的精度损失情况进行了溯源研究,证明该方法是可行的。

The paper presents a method of achieving accuracy loss of the dynamic measurement system according to change of errors on different period of the system. WNN is used for tracing the accuracy loss of dynamic measurement system, traces the total precision loss during a certain period to every part of the system, and the accuracy loss of every part can be gotten, so retaining the accuracy and optimum design of the system is possible. Take tracing the accuracy loss of a simulated system for example it testifies the method.