综合船桥系统航海仪器数据干扰值处理方法

为保障综合船桥系统中航海仪器数据输入的正确性，降低船桥中ECDIS平面态势及虚拟仪表显控错误带来的航行风险。介绍了一种一阶差分与α-β滤波相结合的组合滤波方法，首先运用一阶差分法对干扰值进行判别，若测量值与预估值偏离超过设定阈，则判定为干扰值，并以预估值替代测量组参与α-β组合滤波，在综合船桥系统中对多种仪器输出的干扰值进行处理。将该组合滤波方法与传统的一阶差分法、线性回归法单一处理结果相比较，以舵角数据为例。仿真结果表明，一阶差分与α-β组合滤波方案对排除或修正数据中的干扰值效果较好，对数据跳变处理精度高，实时性好。

Methods of Processing Interference Value of Navigation AIDS Data in the Integrated Bridge System

In order to ensure the accuracy of data input for navigational equipment in the integrated bridge system,and to reduce the navigational risks resulting from errors of ECDIS plane situation and virtual instrument display and control therein.A method combining α-β filter with first difference is proposed.The first step is to make distinguish on the interference value using first difference.If the difference between the measured value and the estimated value exceeds the set threshold,it can be seen as interference value,which can then be taken into α-β filtering together with the estimated value in order to process the interference value from multi instruments in the IBS.Compared with severai traditional methods,the experimental analysis results show that the proposed method has a better effect on eliminating and modifying data interference value,and it has higher accuracy and better real-time for data processing.