Research On Inversion For Blast Furnace Surface Distribution

作     者：Qingwen Hou 1,2 , Xianzhong Chen 1,2 , Zhiwei Xu 1,2 1. School of Automation & Electrical Engineering, University of Science and Technology Beijing, Beijing 1000832. Key Laboratory of the Ministry of Education of China for Advanced Control for Iron and Steel Process, University of Science and Technology Beijing, Beijing 100083 

会议名称：《第24届中国控制与决策会议》

会议日期：2012年

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：supported by National High Technology Research and Development Program 863 (NO:2009AA042156) Metallurgical Engineering Research Institute basic theory research of University of Science and Technology Beijing(NO:YJ2010-009) 

关 键 词：FMCW radar blast furnaces burden surface time-frequency analysis inversion interpolation. 

摘      要：Based on the working principle of FMCW radar and features of rough material surface, a novel surface inversion method is proposed. First, CZT transform is applied to get the spectrum distribution of beat signal. Then, energy center method is used in calculation of center distance. Finally, the center distance and distance distribution are respectively used as the key interpolation points and interpolation constraints in the ultimate surface inversion process. During the simulation, the author uses MATLAB to simulate the target beat signal under different incident conditions to study the influencing factors of spectrum distribution. Experiment of the coke bulk solid measurement shows that the interpolation surface and the actual coke material surface are basically the same.