基于矢量调制法的新型寻北仪的研究

A North Seeker Based on VMM Principle

寻北仪是导航、定位领域的基准仪器。本文阐述了基于矢量调制法的新型寻北仪实验装置，主要介绍了其工作原理和硬件组成。针对该寻北仪的特点，提出相应的抗干扰措施及滤波算法。该方法对于陀螺仪的零偏和零偏漂移具有良好的抑制和消除作用。通过实际测试。证明了应用低精度光纤陀螺可以进行地速的测量。

North seeker is the reference instrument in the navigation and fix position areas. Based on vector modulation method, this paper presents a scheme for north seeker with its particular operating principle and hardware composition. With the characteristic of north seeker, anti-interference measures and filtering algorithm are put forward. The proposed method can effectively suppress and offset the zero bias and drift of zero bias of gyro. Through practically testing, the ground speed is calculated by using the low precision Fibre Optical Gyro（FOG）.