...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of aerospace engineering >Online Magnetometer Calibration in Consideration of Geomagnetic Anomalies Using Kalman Filters in Nanosatellites and Microsatellites
【24h】

Online Magnetometer Calibration in Consideration of Geomagnetic Anomalies Using Kalman Filters in Nanosatellites and Microsatellites

机译：考虑到地磁异常的在线磁强计校准，使用纳曼和微卫星中的卡尔曼滤波器

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Magnetic sensors are reliable, lightweight, and low power consumption sensors that are utilized in almost all nanosatellites and microsatellites for a magnetic attitude control system using magnetic torquers (MTQs). In some nanosatellites and microsatellites, magnetic sensors are utilized for magnetic moment estimation to compensate for torques owing to magnetic dipole disturbances, which are the dominant disturbances in these small satellites. To estimate the magnetic moment accurately, the errors of the magnetic sensors caused by the magnetic anomaly and bias noise from electrical devices should be estimated and compensated precisely. Although several previous studies have focused on the estimation and compensation of the errors of the magnetic sensors, the magnetic anomaly of the geomagnetic field has not been considered, even though the anomaly introduces large estimation errors. This research proposes a method to estimate the time-variable errors arising from both magnetometer bias and the magnetic anomaly of the geomagnetic field using an extended Kalman filter (EKF) and unscented Kalman filter (UKF). Based on numerical simulation results, this study concludes that the effects of both magnetic sensor bias and magnetic anomalies can be compensated for by the proposed method. (C) 2016 American Society of Civil Engineers.
机译：磁传感器是可靠，轻巧和低功耗的传感器，几乎所有的纳米卫星和微卫星都使用磁传感器，用于使用磁转矩控制器（MTQ）的磁姿态控制系统。在一些纳米卫星和微卫星中，磁传感器用于磁矩估计，以补偿由于磁偶极子扰动引起的转矩，这些偶极子扰动是这些小型卫星中的主要扰动。为了准确地估计磁矩，应准确估计和补偿由磁异常和电气设备的偏置噪声引起的磁传感器误差。尽管先前的一些研究集中在磁传感器的误差的估计和补偿上，但是即使该异常引入了大的估计误差，也没有考虑地磁场的磁异常。这项研究提出了一种使用扩展卡尔曼滤波器（EKF）和无味卡尔曼滤波器（UKF）来估算由磁力计偏差和地磁场的磁异常引起的时变误差的方法。基于数值模拟结果，本研究得出结论：所提出的方法可以补偿磁传感器偏置和磁异常的影响。 （C）2016年美国土木工程师学会。

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