| 超声波CT温度场重建算法研究综述 |
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| 引用本文： | 李冰清,赵子健,常发亮.超声波CT温度场重建算法研究综述[J].电子测量与仪器学报,2016,30(1):1-10. |
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| 作者姓名： | 李冰清 赵子健 常发亮 |
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| 作者单位： | 山东大学控制科学与工程学院 济南250061 |
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| 基金项目： | 高等学校博士学科点专项科研基金(20130131120036;20130131110038)，山东省优秀中青年科学家科研奖励基金(BS2013DX027)，中国自然科学基金(61273277 |
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| 摘 要： | 为了深入研究超声波CT温度场重建算法,总结了已有的研究成果,归纳了这一领域内的主流算法,并对现有的8种算法进行了MATLAB仿真实验。实验结果表明,使用ramp滤波器的滤波反投影算法重建精度较低,均方根误差超过38%;基于矩阵方程的重建算法效率较高,但是一般需要有较多的超声波路径;迭代算法对路径要求低,重建结果较好。由于超声波传播的复杂性和应用条件的多样性,超声CT重建算法仍然有很大的发展空间和研究价值,同时测量温度和风速的超声CT算法将是未来的发展趋势。
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| 关 键 词： | 超声CT 温度 风速 重建算法 飞行时间 |
Summary of study on temperature field reconstruction algorithms using ultrasonic CT |
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| Li Bingqing,Zhao Zijian and Chang Faliang.Summary of study on temperature field reconstruction algorithms using ultrasonic CT[J].Journal of Electronic Measurement and Instrument,2016,30(1):1-10. |
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| Authors: | Li Bingqing Zhao Zijian and Chang Faliang |
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| Affiliation: | School of Control Science and Engineering, Shandong University, Jinan 250061, China,School of Control Science and Engineering, Shandong University, Jinan 250061, China and School of Control Science and Engineering, Shandong University, Jinan 250061, China |
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| Abstract: | In order to explore the temperature field reconstruction algorithms by using ultrasonic CT, we review the former research results, summarize the main approaches in this area, and carry out the computer simulation for 8 existing algorithms using MATLAB. The experiment results indicate that the filtered back projection method with ramp filter shows poor accuracy, and its root of mean square error is over 38%. The methods based on matrix equation are computationally efficient, but they usually require too many paths. The iterative methods demand fewer paths, and their reconstruction results are satisfying. As the complexity of ultrasonic propagation and the variety of ultrasonic CT application, there is much space for the research of the ultrasonic CT reconstruction. It will be a possible development trend to the ultrasonic CT research on measuring both temperature and wind velocity simultaneously. |
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| Keywords: | ultrasonic CT temperature wind reconstruction method time of flight |
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