【摘要】 在星间观测值数据传输中,由于种种因素有个别值与其他值截然不同,对定轨精度造成了严重的影响,必须对这些违反测量过程规律的异常测量值进行剔除。提出一种运用轨道积分器与设定随时间实时变化的门限值对星间距离观测值进行异常值剔除的方法。仿真结果表明,这种异常值剔除方法能够成功剔除观测误差大于等于180m的异常值,较精确、实时地剔除了对定轨结果影响较大的异常值,在卫星导航领域具有一定的应用价值。更多还原

【Abstract】 Some value is different form other values because of all sorts of factors in the data transmission of observation values of satellites,which has great influence on the precision of orbit determination. Such abnormal values which violate the measurement rules must be rejected. This paper proposes a method to reject the abnormal values of crosslink range with the orbit integrator and the threshold changing with time. The simulation results show that this method can reject the abnormal values of the observation error which are no less than 180m and the abnormal values which have great effect on the orbit determination are rejected accurately and in real time.更多还原