光纤陀螺寻北仪控制系统的设计和实现

陀螺寻北系统在军事和民用领域具有极广阔的应用。该文介绍了一种使用光纤陀螺实现自寻北系统的实现方法。系统采用DSP和计算机相结合的方法，其中用DSP进行数据采集及系统控制，DSP和计算机以RS232串口方式进行通信，用计算机实现数字滤波、数据解算和实时状态显示，完成寻北。寻北结束给出初始方位角，并用激光光斑指示北向。已完成的系统根据采用陀螺精度不同，达到3～10mrad寻北精度，可以满足相应寻北精度要求的军事和民用目的。

Implementation and design of control system of FOG north finder

Gyro North Finder is widely used in the military and civilian fields.A North Finder system incorporated with a Fiber Optic Gyro(FOG) is introduced in this paper.The system combined computer with DSP,which is used to capture gyro output data and control system.It communicates with computer by RS232 serial port.Data filtering,data resolving and real-time display are executed by computer to find the north.The initial azimuth angle is given by computer when the North is found,and the North is indicated by a beam of laser.The accuracy of the final FOG North Finder system reaches 3to 10 mil.The system can meet the requirements for military and civilian applications.