• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mathematical Problems in Engineering: Theory, Methods and Applications >A Fast and High-Accuracy Compass Alignment Method to SINS with Azimuth Axis Rotation
【24h】

A Fast and High-Accuracy Compass Alignment Method to SINS with Azimuth Axis Rotation

机译：方位角轴旋转的捷联惯导快速高精度对准方法

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Azimuth axis rotating modulation was introduced to improve the alignment accuracy of strapdown inertial navigation system (SINS) through compass algorithm, in which the limit accuracy was determined by equivalent sensor errors in the eastern and northern direction. In this modulation, horizontal sensor errors were modulated into zero mean periodic variables. Furthermore, two methods were introduced to ensure alignment accuracy and speed: (1) shortened rotating cycle and redesigned compass parameters were selected to eliminate or ease the amplification to low-frequency senor error inputs in compass loop caused by rotation and (2) a data repeated calculation method was designed to shorten prolonged alignment time caused by the above redesigned parameters. Based on a certain SINS, turntable test proves that alignment accuracy and time were significantly improved and slightly shortened in comparison with the classical compass alignment.
机译：引入方位角旋转调制通过罗盘算法提高捷联惯性导航系统（SINS）的对准精度，其中极限精度由东西方向的等效传感器误差确定。在这种调制中，水平传感器误差被调制为零平均周期变量。此外，还引入了两种方法来确保对准精度和速度：（1）缩短旋转周期并重新设计指南针参数，以消除或减轻由旋转引起的指南针环中低频传感器误差输入的放大，以及（2）数据设计了重复计算方法，以缩短由上述重新设计的参数导致的对准时间延长。基于某种SINS，转盘测试证明与传统的指南针对准相比，对准精度和时间得到了显着改善，并且略有缩短。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号