基于结构化稀疏表达的舰船导航系统  

Design of ship navigation system based on structured sparse representation

作　　者：陈冠宇[1] CHEN Guan-yu(Shandong Polytechnic,Jinan 250104,China)

机构地区：[1]山东职业学院,山东济南250104

出　　处：《舰船科学技术》2020年第6期148-150,共3页Ship Science and Technology

摘　　要：传统的舰船导航系统显示方向与实际行驶方向会产生较大的偏离角,为此,设计一种基于结构化稀疏表达的舰船导航系统。以高速计算机为核心,外接测量传感器,利用AT89S51单片机对输出通路进行控制,定义引脚功能,完成系统的硬件设计。联合卫星发送的测距码作为测距信号,定位舰船伪距单点,使用稀疏表示分类舰船不同行驶方向数据,将航向数据的四元数作为舰船行驶姿态表示方法,计算舰船的航向精度,完成系统的软件设计。实验结果表明,与传统导航系统相比,基于结构化稀疏表达的舰船导航系统显示方向与实际行驶方向产生的偏离角最小,导航效果最佳。The traditional ship navigation system’s display direction will have a large deviation angles for the actual driving direction. Based on this, a ship navigation system based on structured sparse expression is designed. With high-speed computer as the core, external measurement sensors, AT89 S51 single-chip microcomputer is used to control the output path,define pin functions, and complete the hardware design of the system. The ranging code sent by the joint satellite is used as the ranging signal to locate the ship’s pseudo-range single point. The sparse representation is used to classify the ship’s different driving direction data. The quaternion of the heading data is used as the ship’s driving attitude expression method to calculate the ship’s Heading accuracy, complete the software design of the system. The experimental results show that compared with the traditional navigation system, the ship navigation system based on the structured sparse expression has the smallest deviation angle between the display direction and the actual driving direction, and the navigation effect is the best.

关 键 词：结构化 稀疏表达 导航系统 偏离角 

分 类 号：TN929[电子电信—通信与信息系统]