Unscented Kalman滤波的流量测量研究

英文篇名：Study of flow measurement method based on Unscented Kalman filtering
中文刊名：计算机工程与应用
英文刊名：Computer Engineering and Applications
作者：张绪伟 ; 段培永 ; 段晨旭 ; 杨修文
英文作者：ZHANG Xuwei ; DUAN Peiyong ; DUAN Chenxu ; YANG Xiuwen School of Electrical Engineering and Information ; Shandong Jianzhu University ; Jinan 250101 ; China
中文关键词：渡越时间估计 ; 超声波测量 ; 无味卡尔曼滤波 ; 流量测量
英文关键词：time-of-flight estimate ; ultrasonic-based measurement ; Unscented Kalman filter ; flow measurement
出版日期：2010-12-31
机构：山东建筑大学信息与电气工程学院;
年：2011
期：01
出版单位：计算机工程与应用

摘要

将UKF滤波用于超声波流量测量,使用UKF滤波算法来处理超声波回波信号,得到回波信号的包络线,并且将包络模型的参数作为UKF处理的状态向量。根据流量测量的特点改进了UKF滤波运算过程,给出了UKF迭代开始和结束的条件。最后在Matlab上仿真UKF的性能及收敛速度,证明UKF是有效的和容易实现的。
This paper deals with flow measurements based on ultrasonic time-of-flight estimation.The Unscented Kalman Filter (UKF)is proposed to deal with ultrasonic echo signals and echo signal envelope is acquired.Then the parameters of the envelope are used as the processed state vector.This paper improves the operation of UKF process based on the characteristics of flow measurement,and gives the condition of beginning and end of UKF iteration.Finally,the performance of UKF and its convergence rate are simulated,which proves its reliability,effectiveness and easiness to achieve along with advantages compared with the previous ones.

引文

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