| Gain-Scheduling H∞ Autopilot Design for Tactical Missiles with Variable-Swept Wings |
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| 作者姓名： | Ming Wang Chong Kang Liming Fan Xiaojun Zhang |
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| 作者单位： | College of Mechanical and Electrical Engineering,Harbin Engineering University;Science College,Harbin Engineering University |
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| 基金项目： | Sponsored by Armament Department Pre-Research Foundation of China （Grant No.9140A31010114JB25465) , Natural Science Foundation of Jiangsu Province (Grant No.BK20140795), and Chinese Aerospace CAST Innovation Foundation(Grant No.CAST2014-27). * |
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| 摘 要： | It is very important to determine the magnetic object location using the magnetic anomaly. This paper presents a method for determined the magnetic object location using the geomagnetic field intensity. The magnetic object center position can be obtained by the amplitude of the analytic signal( AS) of geomagnetic total intensity. The vertical distance can be obtained by the value of magnetic anomaly on center position. But the vertical distance from measuring plane to magnetic object is not relatively precious because of not eliminating the geomagnetic normal field in the calculation process. The method of modeling geomagnetic normal field in small space is proposed based on Taylor polynomial. The impact of geomagnetic variation field for the precious of model is analyzed. Through the measured data and the model data,total intensity magnetic anomaly on the measuring plane is obtained which is used for calculating the vertical distance of magnetic object by calculating model. The experimental tests have been conducted on open field on the campus of Harbin Engineering University. The results show that the calculated results and real values match perfectly using this method.
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| 关 键 词： | magnetic object detection geomagnetic field model AS approach Taylor polynomial least squared estimation |
| 收稿时间： | 2014/8/29 0:00:00 |
Method of Obtaining Magnetic Object Location Based on Geomagnetic Field Intensity |
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| Ming Wang,Chong Kang,Liming Fan,Xiaojun Zhang.Method of Obtaining Magnetic Object Location Based on Geomagnetic Field Intensity[J].Journal of Harbin Institute of Technology,2015,22(1):111-116. |
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| Authors: | Ming Wang Chong Kang Liming Fan and Xiaojun Zhang |
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| Affiliation: | 1. College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China
2. Science College, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | It is very important to determine the magnetic object location using the magnetic anomaly. This paper presents a method for determined the magnetic object location using the geomagnetic field intensity. The magnetic object center position can be obtained by the amplitude of the analytic signal (AS) of geomagnetic total intensity. The vertical distance can be obtained by the value of magnetic anomaly on center position. But the vertical distance from measuring plane to magnetic object is not relatively precious because of not eliminating the geomagnetic normal field in the calculation process. The method of modeling geomagnetic normal field in small space is proposed based on Taylor polynomial. The impact of geomagnetic variation field for the precious of model is analyzed. Through the measured data and the model data, total intensity magnetic anomaly on the measuring plane is obtained which is used for calculating the vertical distance of magnetic object by calculating model. The experimental tests have been conducted on open field on the campus of Harbin Engineering University. The results show that the calculated results and real values match perfectly using this method. |
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| Keywords: | gain-scheduling robust autopilot variable-swept wing bank-to-turn |
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