基于多天线GPS的船载卫星天线跟踪系统  

Onboard satellite antenna tracking system based on multi-aerial GPS

作　　者：高恭娴[1] 乔洁[1] 

机构地区：[1]南京信息职业技术学院电子信息系,江苏南京210036

出　　处：《传感器与微系统》2010年第2期90-92,共3页Transducer and Microsystem Technologies

摘　　要：为了克服传统的船载卫星天线跟踪系统因采用多种传感器带来的硬件成本高、软件接口复杂、系统运行速度慢和精度低等问题，提出了用多天线GPS姿态测量的方法，将GPS天线直接安装在卫星接收天线上，根据GPS各个天线的三维位置信息数据计算船载卫星天线的姿态，再由卫星的位置计算天线相对于卫星的角度并进行跟踪，实现了用一种传感器完成船载天线跟踪系统的姿态测量与控制。系统在内湖和海上进行多次测试，测试结果表明：在船体航行过程中电视信号的强度保持在60％-70％之间，对亚洲2号卫星进行移动跟踪的方位角误差的测试数据在±1．5°之间。该设计具有测试方法简单、误差小、成本低和使用方便等特点，有广泛的市场前景。The traditional onboard satellite antenna tracking system uses a variety of sensors, which causes many problems such as high cost of hardware, complicated software interfaces, slow operating rate of system, low precision and so on. In order to overcome these problems, a muhi-erial GPS attitude measurement method is put forward,which installs the GPS antenna directly on recieving antennas. According to the data of the 3D position information of each GPS antenna, the attitude of the satellite antenna can be calculated. According to the satellite position, the angle of the antenna relative to the satellite can be calculated and tracked. So one type of sensors can be used to complete the attitude measure and control of onboard antenna automatic tracking system. After several tests on inner lake and sea, the result shows that the TV signal strength is maintained between 60 % and 70 % and the test data of position error from mobile tracking NO. 2 Asian satellite is less than ±1.5°. This design has the advantage of simple-testing, small error, low cost, easy to use. It has broad market prospect.

关 键 词：单片机 控制系统 姿态测量 伺服系统 接收天线 

分 类 号：V556[航空宇航科学与技术—人机与环境工程]