捷联寻北信号采集系统研究 -

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捷联寻北信号采集系统研究

doi:10.3788/CO.20140705.0786

王永伟^1,2,3,,,
徐向东¹,
高峰¹,
穆岩¹,
宫亚坤¹

1.
中国科学院长春光学精密机械与物理研究所, 吉林长春 130033;
2.
中国科学院大学, 北京 100049;
3.
空军驻长春地区军事代表室, 吉林长春 130012

基金项目:

吉林省自然科学基金资助项目（No.201115124）

详细信息

作者简介:
王永伟（1983- ），男，山西汾阳人，学士，工程师，2006年于空军工程大学获得学士学位，主要从事雷达工程、光学系统加工等方面的研究。

通讯作者:
王永伟，E-mail：yongwei.516@163.com

中图分类号:TN911.7
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- 被引次数:0
出版历程
- 收稿日期:2014-04-15
- 修回日期:2014-06-13
- 刊出日期:2014-09-25

Signal sampling system of strap-down north seeking

1.
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China;
3.
Air Force Military Delegate Office in Changchun, Changchun 130012, China

摘要

摘要:基于捷联寻北信号采集系统，提出了一种在不同地理纬度下准确获得陀螺数据拟合曲线的方法。首先计算得出了在不同地理纬度下动调陀螺输出的电流大小，根据其变化调整信号采集模块的采样电阻值，设计了基于数字电位器的自调整采样电阻系统；然后数据处理系统根据采集到的陀螺信号自动计算工作地点的地理纬度，自调整采样电阻系统通过地理纬度自动设置采样电阻的阻值，进而获得准确的数据拟合曲线。本方法确保了寻北仪在不同地理纬度时满足寻北精度要求，适应性强，稳定性高。
- 信号检测/
- 捷联寻北/
- 信号采集系统/
- 数字电位器
Abstract:We proposed a method to accurately acquire the sin wave curve of strap-down north seeking signal acquisition system at different latitudes. According to the current value of dynamically tuned gyro output at different latitude we designed a system which can automatically adjust the sample resistor value using digital potentiometer. The data processing system calculates the latitude automatically based on dynamically tuned gyro signal and then the signal acquisition system resets the acquisition resistor value, and thus we can acquire the sin wave curve efficiently. Using this method we ensure that the north finder can meet the accuracy requirements at different geographical latitudes, and has strong adaptability and high stability.
- signal detecting/
- strap-down north seeking/
- signal sampling system/
- digital potentiometer

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参考文献 (1)

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