| 基于惯性系的旋转式惯导系统快速对准算法 |
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| 引用本文： | 陈敬萱,程旭红,李晋.基于惯性系的旋转式惯导系统快速对准算法[J].传感器与微系统,2017,36(7). |
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| 作者姓名： | 陈敬萱 程旭红 李晋 |
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| 作者单位： | 1. 哈尔滨工程大学计算机科学与技术学院,黑龙江哈尔滨,150001;2. 烟台广电信息网络中心广电技术部,山东烟台,264000 |
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| 基金项目： | 国家自然科学基金重点资助项目，国家自然科学基金面上资助项目 |
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| 摘 要： | 针对船舶大幅角晃动和线运动等复杂干扰,导致旋转式捷联惯导系统初始对准性能下降的问题,设计了基于惯性系的旋转式捷联惯导系统快速初始对准算法.针对旋转式捷联惯导系统的误差特性,设计了基于惯性系的粗对准方案;并提出了一种改进的罗经对准算法,达到缩短对准时间和提高对准精度的目的.仿真实验证明:该方法可以实现快速初始对准,7 min航向精度达到1.35′.
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| 关 键 词： | 捷联惯导系统 旋转调制 惯性系 初始对准 罗经 |
Rapid alignment algorithm for rotary INS in inertial frame |
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| CHEN Jing-xuan,CHENG Xu-hong,LI Jin.Rapid alignment algorithm for rotary INS in inertial frame[J].Transducer and Microsystem Technology,2017,36(7). |
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| Authors: | CHEN Jing-xuan CHENG Xu-hong LI Jin |
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| Abstract: | Complex interference of angular swaying and linear motion can depress the alignment performance of the rotary strapdown inertial navigation system (SINS).In order to solve the problems,a rapid alignment algorithm for rotary SINS in inertial frame is presented.Based on error characteristics of rotary SINS,design a coarse alignment method in inertial frame.And an improved rotary SINS gyrocompass alignment algorithm is proposed to speed up the alignment and increase precision.Simulation results show that the proposed algorithm can accomplish Rotatry SINS alignment quickly,and make azimuth accuracy confine to 1.35 minute of arc in 7 min. |
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| Keywords: | strapdown inertial navigation system (SINS) rotary modulation inertial frame initial alignment gyrocompass |
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