激光陀螺速率偏频系统的分析研究

针对速率偏频激光陀螺的应用,从系统角度对激光陀螺速率偏频系统中存在的特有问题,诸如速率偏频三轴激光陀螺输出的调制方程、角速率解调的条件方程以及有关参量的精度、偏频速率的选择、偏频台回转加速度的确定、偏频台回转定位等方面进行了研究探讨,并通过比较提出了“偏频台导航系统”的方法,利用此方案能降低系统设计要求,提高系统导航精度。

RESEARCH ON RATE-BIAS SYSTEM OF LASER GYRO

From the view of system, the paper analyzes some special problems of rate bias laser gyro. The problems include modulation and demodulation of the output of rate bias triple-axis laser gyro, the choice principle of the biased rate, rotating-back acceleration of rate bias platform and the rotating-back position's effect, etc. In addition, through comparing between two plans of navigation, the paper puts forward a plan named ‘navigation project based on rate bias platform’ which is able to increase the accuracy of navigation system or reduce the design demand. The article builds a series of basic design criteria of rate bias laser navigation system, providing certain reference for the system design.