基于统一方程多种配置的GF-INS技术研究

Study of different configuration GF-INS based on an unification equation

采用加速度计取代陀螺仪作为惯性测量元件构建的无陀螺惯导系统(GF-INS),具有成本低、体积小、机动性能好等优点,已成为近年来惯性技术应用领域的研究热点。文中从理论上分析研究了GF-INS加速度计的输出方程,提出了基于统一方程的GF-INS解算的一般过程,并进行了理论推导。研究表明,不同加速度计配置方案只是选取了不同的参数,解算本质是一致的。结合国内外相关研究成果,对GF-INS的研究与发展提出了若干建议。

Gyro free inertial navigation system （GF-INS） substituting accelerometers for gyroscopes, because of many merits such as low cost, small size, and good maneuverability, has interested many researchers in recent years. The output equations of accelerometers in GF-INS were analyzed theoreti- cally. The common computation process of GF-INS based on the unification equation was proposed and a theoretic derivation was done. The researching work shows that the calculation of dif-ferent conf igurations is coincident essentially despite some different parameters. Based on the domestic and over- seas achievements, suggestions for the developments of GF-INS were brought forward.