舰载条件下一种新的传递对准方案与仿真研究  

New Approach and Simulation of Shipboard Transfer Alignment

作　　者：朱新颖[1] 秦永元[1] 杨鹏翔[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072

出　　处：《计算机测量与控制》2008年第4期518-520,共3页Computer Measurement &Control

摘　　要：传递对准是战术舰载武器惯导系统初始对准的一种有效方法;针对舰载捷联惯导系统的初始对准问题,提出了一种新的动基座快速传递对准方案——速度+角速度匹配方案;给出了这种方法的数学模型,采用一种简单的航行轨迹,在三种典型的海况下,对这一传递对准方法中子惯导姿态误差角,速度误差和舰船甲板变形进行了卡尔曼滤波估计及精度分析;研究结果表明,速度加角速度匹配方法具有稳健的对准精度和快速性,估计精度随海况变化不大。Transfer alignment is used for initial alignment of INS of tactical weapon on shipboard. A new approach to transfer alignment for the initial alignment of shipboard Strapdown inertial navigation systems on moving base was put forward-velocity plus angular rate matching method. The mathematic model of transfer alignment is given. A simple trajectory is used in the simulation of alignment. The misalignment angle of slave-navigation system, the velocity error and the deformation of ship＇s deck under three typical sea conditions is estimated using this method with Kalman filter, and the estimate precision is interpreted. Study results show that higher precision and shorter response time with robust is obtained. The estimate precision is changing little as the sea conditions.

关 键 词：传递对准 速度加角速度匹配 卡尔曼滤波 甲板变形 

分 类 号：U666.1[交通运输工程—船舶及航道工程]