Time-Varying Biased Proportional Guidance with Seeker’s Field-of-View Limit
Traditional guidance laws with range-to-go information or time-to-go estimation may not be implemented in passive homing missiles since passive seekers cannot measure relative range directly. A time-varying biased proportional guidance law, which only uses line-of-sight (LOS) rate and look angle inf...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/9272019 |
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| _version_ | 1832563897454821376 |
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| author | Zhe Yang Hui Wang Defu Lin |
| author_facet | Zhe Yang Hui Wang Defu Lin |
| author_sort | Zhe Yang |
| collection | DOAJ |
| description | Traditional guidance laws with range-to-go information or time-to-go estimation may not be implemented in passive homing missiles since passive seekers cannot measure relative range directly. A time-varying biased proportional guidance law, which only uses line-of-sight (LOS) rate and look angle information, is proposed to satisfy both impact angle constraint and seeker’s field-of-view (FOV) limit. In the proposed guidance law, two time-varying bias terms are applied to divide the trajectory into initial phase and terminal phase. The initial bias is designed as a function of LOS rate and look angle to maintain the seeker’s lock-on while the final bias eliminates the deviation between the integral value of angle control bias and the expected bias amount. A switching logic is adopted to change the biases continuously so that there is no abrupt acceleration change during the engagement. Extensive simulations considering both kinematic and realistic missile models are performed to illustrate the efficiency of the proposed method. |
| format | Article |
| id | doaj-art-305811c9c964486fa878568ff03c4c8b |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-305811c9c964486fa878568ff03c4c8b2025-02-03T01:12:15ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742016-01-01201610.1155/2016/92720199272019Time-Varying Biased Proportional Guidance with Seeker’s Field-of-View LimitZhe Yang0Hui Wang1Defu Lin2Beijing Institute of Technology, Beijing 100081, ChinaBeijing Institute of Technology, Beijing 100081, ChinaBeijing Institute of Technology, Beijing 100081, ChinaTraditional guidance laws with range-to-go information or time-to-go estimation may not be implemented in passive homing missiles since passive seekers cannot measure relative range directly. A time-varying biased proportional guidance law, which only uses line-of-sight (LOS) rate and look angle information, is proposed to satisfy both impact angle constraint and seeker’s field-of-view (FOV) limit. In the proposed guidance law, two time-varying bias terms are applied to divide the trajectory into initial phase and terminal phase. The initial bias is designed as a function of LOS rate and look angle to maintain the seeker’s lock-on while the final bias eliminates the deviation between the integral value of angle control bias and the expected bias amount. A switching logic is adopted to change the biases continuously so that there is no abrupt acceleration change during the engagement. Extensive simulations considering both kinematic and realistic missile models are performed to illustrate the efficiency of the proposed method.http://dx.doi.org/10.1155/2016/9272019 |
| spellingShingle | Zhe Yang Hui Wang Defu Lin Time-Varying Biased Proportional Guidance with Seeker’s Field-of-View Limit International Journal of Aerospace Engineering |
| title | Time-Varying Biased Proportional Guidance with Seeker’s Field-of-View Limit |
| title_full | Time-Varying Biased Proportional Guidance with Seeker’s Field-of-View Limit |
| title_fullStr | Time-Varying Biased Proportional Guidance with Seeker’s Field-of-View Limit |
| title_full_unstemmed | Time-Varying Biased Proportional Guidance with Seeker’s Field-of-View Limit |
| title_short | Time-Varying Biased Proportional Guidance with Seeker’s Field-of-View Limit |
| title_sort | time varying biased proportional guidance with seeker s field of view limit |
| url | http://dx.doi.org/10.1155/2016/9272019 |
| work_keys_str_mv | AT zheyang timevaryingbiasedproportionalguidancewithseekersfieldofviewlimit AT huiwang timevaryingbiasedproportionalguidancewithseekersfieldofviewlimit AT defulin timevaryingbiasedproportionalguidancewithseekersfieldofviewlimit |