LU Jian-shan, WANG Chang-ming, ZHANG Ai-jun. Study on error compensation of magnetic compass[J]. 2010, 29(6): 75-76+79. DOI: 10.13873/j.1000-97872010.06.004.
数字磁罗盘的航向角干扰补偿方法研究
摘要
针对磁罗盘在实际使用中产生的各种误差
分析了其产生原因
并对2种误差补偿方法—八位置最小二乘法和BP网络补偿法进行了比较分析。在此基础上
提出了两者组合的补偿方案
对磁罗盘的输出先采用最小二乘法粗校
再应用BP网络精校。结果表明:补偿前最大31°的误差基本控制在±0.15°之内
能够很好地满足实际使用的需要。
Abstract
Aimed at the errors of magnetic compass in practical use
the reason which cause errors is analyzed.And the compensating methods of least squared method and BP networks are compared.Based on it
an integrated compensation method is presented.Least squared method is used to coarsely calibrate the compass output
and then the method of BP networks is applied to finely calibrate the error.The results show that
errors whose maximum value is 31° before compensated is controlled within ±0.15°and it can meet practical demands very well.