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�������պ����ѧѧ�� 2007, Vol. 33 Issue (09) :1041-1045    DOI:
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Method of signal processing in weigh-in-motion of vehicles
Wu Jie, Fei Yuhua, Yu Jinsong, Wan Jiuqing*
School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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ժҪ Ϊ�����������̬����(WIM, Weigh-In-Motion)ϵͳ�ij��ؾ���,����"��ģ��"��˼��,ʹ��������Ӧ���˲�����������ƻ���������ź�Ƶ���ڵ������ź�.�����޳��弤��Ӧ�˲����Ŀ����,ͨ����С��������Ӧ�㷨,���߹�����WIMϵͳ����ϵͳ,���ô���ϵͳ��Ϊһ�����͵��˲���ʹ��.����,Ϊ�˽�һ����߳��ؾ���,ͬʱ�ֲ����˵�ͨ�˲���,���˳��ֲ��������ź�Ƶ���������������.����������Ӧ���˲����͵�ͨ�˲������ɵĸ����˲��������, ���ؽ���Ͼ��������Ʒ��������õ��Ľ��,�ڳ��ؾ��������˺ܴ����.
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Abstract�� Based on the concept of inverse model, an adaptive inverse filter (AIF) was employed which could suppress noise within the bandwidth of the desired signal. Within the framework of the finite impulse response (FIR) filter, the inverse system of weigh-in-motion (WIM) system was constructed by using least mean square (LMS) adaptive algorithm as an innovative filter. Moreover, for the sake of best improving measurement accuracy, as a noise filter, a low-pass (LP) filter dedicated to restrain noise out of the bandwidth of useful signal was adopted. After processed by cascaded filter combination, namely, AIF filter and LP filter, obtained results, compared with those processed by the approach of parameter estimation, show a significant improvement in estimation of static weight of moving vehicles.
Keywords�� weigh-in-motion (WIM)   inverse filtering   adaptive algorithm   signal processing     
Received 2006-09-20;
About author: �� ��(1981-),��,����������,˶ʿ��,maverickwj@gmail.com.
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���, ����, �ھ���, �����.������̬�����е�һ���źŴ�����[J]  �������պ����ѧѧ��, 2007,V33(09): 1041-1045
Wu Jie, Fei Yuhua, Yu Jinsong, Wan Jiuqing.Method of signal processing in weigh-in-motion of vehicles[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2007,V33(09): 1041-1045
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