Abstract: This paper is concerned with the Networked Dynamic Measurement System(NDMS). An adaptive estimator, based on LMS algorithm, is designed to estimate the time-source synchronous error without the GPS and other time synchronization equipment, and to achieve the dynamic compensation of time-delay error. The results of simulation show that the adaptive estimator can estimate the time-source synchronous error effectively, and the total error drops by 85%, compared with that hasn’t been compensated.

Key words: networked measurement, time-delay error, adaptive estimation, dynamic compensation

摘要： 以基于网络的动态测试为研究背景，在无GPS等时钟同步设备的条件下，设计一个基于LMS算法的自适应估计器，对参比系统、被测系统及误差处理器的时钟源同步误差进行在线估计，实现了对网络时延引起的时滞误差的动态补偿。仿真结果表明，该自适应时延估计器能够有效地对时钟源同步误差进行估计，网络化测试系统动态补偿后的总误差比补偿前下降了85％。

关键词: 网络化测试, 时滞误差, 自适应估计, 动态补偿

CLC Number: 

• TP393