| 一种低成本抗干扰速率计的设计 |
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| 引用本文： | 谢志刚,赵京坡,李江,余胜义.一种低成本抗干扰速率计的设计[J].宇航计测技术,2014,34(2):37-42. |
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| 作者姓名： | 谢志刚 赵京坡 李江 余胜义 |
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| 作者单位： | 1、中国人民解放军驻航天科工集团公司第二研究院中心军事代表室，北京 100039；;
2、北京航天发射技术研究所，北京 100076；;
3、兵器工业集团二零二所，咸阳 712099 |
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| 摘 要： | 为降低某车载导航系统速率计的外购成本，设计了一种低成本速率计。该速率计采用高精度光电编码器，基于差分思想设计了具有较高抗干扰能力的鉴相电路，并设计了相应的机械结构部件，从总体上降低了成本。该速率计通过了环境试验考核，匹配车载导航系统进行了跑车试验验证，试验数据表明该速率计满足某项目车载导航系统的要求。
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| 关 键 词： | 车载导航系统 速度计 光电编码器 鉴相电路 |
Design of a Kind of Low-cost and Anti-interference Velocity meter |
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| XIE Zhi-gang,ZHAO Jing-po,LI Jiang,YU Sheng-yi.Design of a Kind of Low-cost and Anti-interference Velocity meter[J].Journal of Astronautic Metrology and Measurement,2014,34(2):37-42. |
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| Authors: | XIE Zhi-gang ZHAO Jing-po LI Jiang YU Sheng-yi |
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| Institution: | 1、PLA Central Military Agency Office in Second Academy of CASIC，Beijing 100039；;
2、Beijing Institute of Space Launch Technology，Beijing 100076；;
3、NO.202 Institute of China North Industry Group Corporation，Xianyang 712099 |
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| Abstract: | In order to decrease the cost of velocity meter, which is a part of a vehicle navigation system, a new kind of low-cost velocity meter is designed. This velocity meter includes a high-precision photoelectrical coder, and a corresponding phase demodulation circuit, it also has the characteristic of anti-interference. This meter had been experienced by several field-tests accompanying with the naviga-tion system. The results show that this new velocity meter can meet specific requirements of the navigation system. |
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| Keywords: | Vehicular nevigation system Velocimeter Photoelectric coded disk Phase discrimi-nation circuit |
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