Dynamic Modeling and Coupling Characteristic Analysis of Two-Axis Rate Gyro Seeker
A dynamic model of a two-axis rate gyro-stabilized platform-based seeker with cross-coupling, mass imbalance, and disturbance torque is developed on the basis of the working principle of seeker two-loop steady tracking theory; coordinate transformations are used to analyze the effects of seeker serv...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/8513684 |
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| _version_ | 1841524468773552128 |
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| author | Shixiang Liu Tianyu Lu Teng Shang Qunli Xia |
| author_facet | Shixiang Liu Tianyu Lu Teng Shang Qunli Xia |
| author_sort | Shixiang Liu |
| collection | DOAJ |
| description | A dynamic model of a two-axis rate gyro-stabilized platform-based seeker with cross-coupling, mass imbalance, and disturbance torque is developed on the basis of the working principle of seeker two-loop steady tracking theory; coordinate transformations are used to analyze the effects of seeker servo control mode on missile guidance and control systems. Frequency domain is used to identify the servo motor transfer function. Furthermore, a block diagram of the two-gimbal-coupled system is developed, and the coupling characteristics of gimbal angle are analyzed with different missile body inputs. Simulation results show that the analysis conforms with the actual movement rule of seeker gimbal and optical axis, and cross-coupling exists between the two gimbals. The lag compensation network can increase the open loop gain and increase the capacity for disturbance rate rejection. Simulations validate the theory and technology support for developing the seeker servo control model in engineering. |
| format | Article |
| id | doaj-art-80643fa02fd64dd6a0b991af521a3b52 |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-80643fa02fd64dd6a0b991af521a3b522025-02-03T05:53:11ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742018-01-01201810.1155/2018/85136848513684Dynamic Modeling and Coupling Characteristic Analysis of Two-Axis Rate Gyro SeekerShixiang Liu0Tianyu Lu1Teng Shang2Qunli Xia3School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaBeijing Aerospace Automatic Control Institute, Beijing 100854, ChinaBeijing Aerospace Automatic Control Institute, Beijing 100854, ChinaSchool of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, ChinaA dynamic model of a two-axis rate gyro-stabilized platform-based seeker with cross-coupling, mass imbalance, and disturbance torque is developed on the basis of the working principle of seeker two-loop steady tracking theory; coordinate transformations are used to analyze the effects of seeker servo control mode on missile guidance and control systems. Frequency domain is used to identify the servo motor transfer function. Furthermore, a block diagram of the two-gimbal-coupled system is developed, and the coupling characteristics of gimbal angle are analyzed with different missile body inputs. Simulation results show that the analysis conforms with the actual movement rule of seeker gimbal and optical axis, and cross-coupling exists between the two gimbals. The lag compensation network can increase the open loop gain and increase the capacity for disturbance rate rejection. Simulations validate the theory and technology support for developing the seeker servo control model in engineering.http://dx.doi.org/10.1155/2018/8513684 |
| spellingShingle | Shixiang Liu Tianyu Lu Teng Shang Qunli Xia Dynamic Modeling and Coupling Characteristic Analysis of Two-Axis Rate Gyro Seeker International Journal of Aerospace Engineering |
| title | Dynamic Modeling and Coupling Characteristic Analysis of Two-Axis Rate Gyro Seeker |
| title_full | Dynamic Modeling and Coupling Characteristic Analysis of Two-Axis Rate Gyro Seeker |
| title_fullStr | Dynamic Modeling and Coupling Characteristic Analysis of Two-Axis Rate Gyro Seeker |
| title_full_unstemmed | Dynamic Modeling and Coupling Characteristic Analysis of Two-Axis Rate Gyro Seeker |
| title_short | Dynamic Modeling and Coupling Characteristic Analysis of Two-Axis Rate Gyro Seeker |
| title_sort | dynamic modeling and coupling characteristic analysis of two axis rate gyro seeker |
| url | http://dx.doi.org/10.1155/2018/8513684 |
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