一种用于船舶气象仪的电子罗盘设计  

An Electronic Compass Design for Ship Meteorological Instrument

作　　者：赵杰[1,2,3] 杨立[1,2,3] 盖志刚[1,2,3] 朱洪海 杨俊贤[1,2,3] 初士博 

机构地区：[1]山东省海洋环境监测技术重点实验室,青岛266001 [2]山东省科学院海洋仪器仪表研究所,青岛266001 [3]山东省海洋仪器仪表科技中心,青岛266001

出　　处：《船舶工程》2016年第S2期236-240,共5页Ship Engineering

基　　金：山东省自主创新专项(2013CXC80101);山东省海洋经济创新发展区域示范(一种预警预报船舶测报系统产业化及示范应用)

摘　　要：以三轴电子罗盘测量基本原理和计算方法为基准,以XMEGA128A1微处理器、内部集成三轴加速度分量和三轴地磁场分量输出的集成芯片LSM303C为硬件电路核心,利用三轴加速度分量计算俯仰角、横滚角补偿电子罗盘的测量方式,运用CORDIC算法实现在微处理器XMEGA128A1上对罗盘进行倾角补偿计算,获得准确的方位角。试验结果表明,此方法设计的电子罗盘精度高、响应快、体积小,能较好地为船舶气象设备提供准确的方位角信息。The paper is based on the triaxial electronic compass measurement principle and calculation method as a benchmark,using XMEGA128A1 microprocessors,with internal integration triaxial acceleration and integrated triaxial magnetic field output chip LSM303 C as hardware circuit core.The paper calculates the pitch angle and roll angle compensation electronic compass by using three axis acceleration output data,applying CORDIC algorithm to implement angle compensation calculation for compass on the microprocessor XMEGA128A1.It obtains the accurate azimuth.The experimental results show that the electronic compass designed by the method is of high precision,fast response and small volume,which can provide accurate azimuth information for ship meteorological instrument.

关 键 词：三轴电子罗盘 三轴加速度 CORDIC算法 船舶气象 

分 类 号：U666.15[交通运输工程—船舶及航道工程]