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| 主惯导旋转调制对传递对准性能的影响 | |
| 引用本文： | 刘为任,唐艳,朱蕾,庄良杰.主惯导旋转调制对传递对准性能的影响[J].中国惯性技术学报,2011,19(1). |
| 作者姓名： | 刘为任 唐艳 朱蕾 庄良杰 |
| 作者单位： | 1. 天津航海仪器研究所,天津,300131 2. 山东德州学院机电系,德州,253000 3. 海军装备研究院,北京,1001611 |
| 基金项目： | 国防科技重点预研项目(91309010301) |
| 摘 要： | 旋转调制技术在调制惯性器件常值误差,有效提高惯导系统长航时导航精度的同时,也引入了由系统旋转而造成的速度误差以旋转周期和旋转周期二倍频波动,这种波动对以速度为匹配量的传递对准有一定的影响。从旋转调制系统的误差特性出发,分析了旋转调制对以速度为匹配量传递对准的有利和不利影响,并针对不同的旋转调制周期进行了仿真验证,仿真结果表明当旋转周期远大于舒勒周期时,旋转调制引起的不利和有利影响都很小,可忽略不计;当旋转周期远小于舒勒周期时,旋转调制可提高子惯导的方位对准精度,但延长了系统的传递对准时间。例如,当旋转周期为3(°)/s时,水平对准时间由3 min延长到4 min,而对准精度由1.2′提高到0.2′;方位对准时间由10 min延长到16 min,而对准精度由2.2′提高到0.4′。 |
| 关 键 词： | 旋转调制 传递对准 误差波动 舒勒周期 |
Effects of MINS rotation-modulating on transfer alignment |
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| LIU Wen-ren,TANG Yan,ZHU Lei,ZHUANG Liang-jie.Effects of MINS rotation-modulating on transfer alignment[J].Journal of Chinese Inertial Technology,2011,19(1). | |
| Authors: | LIU Wen-ren TANG Yan ZHU Lei ZHUANG Liang-jie |
| Institution: | LIU Wen-ren1,TANG Yan2,ZHU Lei3,ZHUANG Liang-jie1(1.Tianjin Navigation Instrument research Institute,Tianjin 300131,China,2.Department of electromachinical,Shandong Dezhou College,Dezhou 253000,3.Naval Academy of Armament,Beijing 100161,China) |
| Abstract: | The INS rotation-modulating technology can reduce the effect of constant drift of inertial instrument and improve the long-time navigation accuracy,but it also introduces the velocity error which is caused by rotation and fluctuates with rotation period and double rotation period.The effects of rotation-modulating on transfer alignment are analyzed based on the error characteristic of rotation-modulating INS,and the analysis results are tested by computer simulation.The simulation result shows that rotation... |
| Keywords: | rotation-modulating transfer alignment error osillation Schuler period |
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