基于DGPS／SINS组合的导航系统动态目标测量方法研究

Dynamic Obj ect Measure Method of Navigation System Based on Combination of DGPS and SINS

惯导（INS）被认为是自主性最强、隐蔽性最好、应用最广泛，不受外界干扰的导航系统，而捷联惯导（SINS）以其诸多优点，成为惯性导航系统的一个主要发展方向。本文论述了DGPS和SINS测姿原理，并通过DGPS／SINS组合实现了冗余测量。通过采用卡尔曼滤波算法，提高了系统的定位精度、可靠性和实用性。同时，利用不同的DGPS卫星定位系统完成了近、中、远距离动态目标的姿态测量。

With its characteristics of the highest self-determination and the best concealment, INS is a wildly used navigation system without disturbed by outside interference, and SINS integrated all characteristics above has become a trend of INS. The paper discussed the attitude measure theory of DGPS and SINS. Via combination of DGPS and SINS, redundant measure of attitude was reached. Adoption of Kalman filtering algorithm improved the system＇s orientation precision, reliability and practicability. At the same time, usage of different kind of DGPS realized the short-, medium- and long-range dynamic object＇s attitude measure.