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磁阻传感器的捷联式磁航向仪及误差补偿
Strapdown Magnetic Heading System and Error Compensation Based on Magnetoresistive Sensor
【摘要】 依据所实现的一种测量航向角的新方法 ,论述磁阻传感器的原理 ,给出了系统数值计算方法 ,分析了系统误差并进行校正。与传统的测量方式 (惯性导航装置、GPS)相比较 ,所提出的航向仪具有重要的优良特性。试验结果显示在捷联状态下 ,用加速度计提供姿态角 ,该系统精度可达到 1°。
【Abstract】 This paper focuses on a development of a sensor system measuring heading of a vehicle or plane. The theory of the solid-state magnetic sensor is presented. It also will include the numerical calculation and error compensation. Compared to the two existing measurement methods (INS、GPS), the new method in this paper has superior and important qualities. With an accelerometer-supplying attitude, the experiment result shows that in strapdown condition, the system can provide outputs accurate to one degree or better.
【关键词】 磁航向仪;
捷联式;
磁阻传感器;
误差补偿;
【Key words】 magnetic heading; strapdown; magnetoresistive sensor; error compensation;
【Key words】 magnetic heading; strapdown; magnetoresistive sensor; error compensation;
【基金】 国防基金资助项目 (99J9.2 .4HK0 30 5 )
- 【文献出处】 传感技术学报 ,Journal of Transcluction Technology , 编辑部邮箱 ,2003年02期
- 【分类号】TP212
- 【被引频次】79
- 【下载频次】673