在动态定位的数据处理中动态观测量可能存在粗差,若数据处理不考虑对这些异常的特别处理,则所提供的动态信息将极不可靠。文中计算了粗差对滤波结果的影响,并由此建立了动态定位中粗差的探测和修复算法。最后用数字仿真实验论证了方法的可行性。
For the data process in kinematic positioning, there may be gross errors in dynamic observation values. If data processing does not pay attention to these gross errors, the information offered in kinematic positioning will not be extremely reliable. This paper calculates the influence of gross error on filter result, and gives an algorithm for detecting and correcting of gross errors in observed values for kinematic positioning. Lastly, a numerical simulation is carried out to prove the feasibility of this method.