| 引用本文: | 张岩,吴文启,江明明.速率偏频激光陀螺寻北仪中转台测角周期性误差的影响分析.[J].国防科技大学学报,2011,33(1):105-108.[点击复制] |
| ZHANG Yan,WU Wenqi,JIANG Mingming.Study on North-finding Deviation Caused by the Turntable's Periodic Angular Position Error in a Rate Biased RLG North-finder[J].Journal of National University of Defense Technology,2011,33(1):105-108[点击复制] |
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| 速率偏频激光陀螺寻北仪中转台测角周期性误差的影响分析 |
| 张岩, 吴文启, 江明明 |
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(国防科技大学 机电工程与自动化学院，湖南 长沙 410073)
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| 摘要: |
| 连续旋转式寻北仪以其突出的性能成为当前寻北仪研究的热点，但关于转台误差对连续旋转寻北算法精度影响的分析很少。针对速率偏频激光陀螺寻北仪，研究了转台测角周期性误差对寻北结果的影响。理论分析表明，测角周期性误差的存在会导致寻北结果偏离真实值，必须对其进行建模和补偿以提高寻北精度。对理论分析结果进行了仿真实验和样机寻北实验验证。 |
| 关键词: 速率偏频激光陀螺 寻北仪 转台测角周期性误差 |
| DOI： |
| 投稿日期：2010-07-22 |
| 基金项目:国家部委资助项目 |
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| Study on North-finding Deviation Caused by the Turntable's Periodic Angular Position Error in a Rate Biased RLG North-finder |
| ZHANG Yan, WU Wenqi, JIANG Mingming |
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(College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073， China)
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| Abstract: |
| Currently, the continuous rotary north-finder is widely discussed for its outstanding performance. However, few researches about the influence of turntable error on the continuous rotary north-finding algorithm can be found. For the north-finder based on rate biased RLG (ring laser gyro), the influence of turntable's periodic angular position errors to the north-finding results was studied. Theoretical analysis shows that, the existence of periodic angular position errors may cause unexpected error in the north-finding process and these errors must be modeled and compensated for in order to increase the north-finding precision. Finally, simulation and experiments were carried out to verify the theoretical conclusion. |
| Keywords: rate biased RLG north-finder turntable's periodic angle position error |
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