宇航计测技术

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一种低成本抗干扰速率计的设计

谢志刚1；赵京坡2；李江3；余胜义2   

  1. 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
  • 出版日期:2014-04-15 发布日期:2014-04-15
  • 作者简介:谢志刚（1962-），男，工程硕士，高级工程师，主要研究方向：控制工程。

Design of a Kind of Lowcost and Antiinterference Velocity meter

XIE Zhi-gang1；ZHAO Jing-po2；LI Jiang3；YU Sheng-yi2   

  1. 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
  • Online:2014-04-15 Published:2014-04-15

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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。

关键词: 车载导航系统, 速度计, 光电编码器, 鉴相电路

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 navigation system. The results show that this new velocity meter can meet specific requirements of the navigation system.

Key words: Vehicular nevigation system, Velocimeter, Photoelectric coded disk, Phase discrimination circuit

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