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提出了基于载波相位时间差分与捷联惯导紧组合的方法对高轨飞行器进行自主导航,其中捷联惯导主要在飞行器进行轨道机动时使用,分析了载波相位观测方程中的误差因素,通过SRUKF建立了组合导航非线性滤波模型,研究了周跳检测与修复策略。研究表明,提出的导航方法避免了整周模糊度的求解和周跳的影响,因而可使导航系统具有高精度和高可靠性。
Proposed based on the carrier phase time difference and SINS tight combination method of autonomous high altitude orbit vehicle navigation, which SINS mainly used in the orbital maneuver aircraft, analysis of the carrier phase observation equation of the error factors, through SRUKF established a combined navigation nonlinear filter model and studied the cycle slip detection and repair strategy. The research shows that the proposed navigation method avoids the solution of global ambiguity and the effect of cycle slip, so that the navigation system can be highly accurate and highly reliable.