基于最优模糊系统的惯导测量弹道修正模型设计

针对惯导测量弹道数据存在累计误差的不足,基于最优模糊系统构建了惯导测量弹道修正模型。通过遥测弹道数据和高精度GNSS数据构造的输入-输出数据对进行模糊系统设计,以导弹飞行试验的高精度弹道数据和惯导测量数据作为学习目标和样本来训练模型,采用最近邻聚类法建立修正模型模糊规则库。以惯性高度修正为例,验证了该方法的有效性,补全了光测和GNSS测量缺失段落的外弹道处理数据,修正了惯导测量弹道数据随时间累积的误差。

Design of Inertial Navigation Model Trajectory Correction Measurement Based on Optimal Fuzzy System

To solve the deficiency of accumulated errors of trajectory data measured by inertial navigation neasurement system,inertial-navigation-measurement trajectory correction model based on optimal fuzzy system was constructed.The input-output data pairs constructed by trajectory telemetry data and high-precision GNSS data were applied to design fuzzy system.Taking high-precision GNSS trajectory data and inertial navigation measurement data of missile flight test as learning objectives and sample trains models,the fuzzy rule base of inertial navigation measurement data correction was established by nearest neighbor clustering method.Taking inertial altitude correction as example,the effectiveness of the method was verified,and the external trajectory processing data of the missing paragraphs of optical measurement and GNSS measurement were completed,and the accumulated error of inertial navigation measurement trajectory data with time was corrected.