基于双天线的高精度GPS定位测向系统及其在无人水面艇上的应用

介绍了一种基于双天线的高精度GPS定位测向系统,该系统可以实现精确定位、测向。分别从硬件和软件两个方面详细介绍了双天线GPS定位测向系统,双天线GPS系统的硬件部分主要由GPS接收机、主天线和从天线组成,GPS接收机内置OEM板和底层通信板,软件部分主要解析GPS数据处理模块的软件工作流程。通过静态实验和动态实验分析系统定位、测向的精度,实验数据表明静态实验的经度的标准偏差为0.3155米,纬度的标准偏差为0.1962米,第一次静态实验的测向标准偏差为0.0981°,第二次静态实验的测向标准偏差为0.0926°。最后,将此系统应用到无人水面艇,进行直线路径跟踪水上试验。

High precision GPS system based on double antennasand its application in unmanned surface vessel

This paper described a high precision GPS system based on double antennas, which can realize precise position and orientation. The architecture of the GPS system based on double antennas from the viewpoint of the hardware and software is studied in detail, the hardware mainly includes a GPS receiver main antenna and from the antenna .The OEM board and underlying communication board is built in the GPS receiver. The software mainly described the workflow of the GPS data processing module. The static tests and dynamic tests are carried out for analysis accuracy of the system. The experimental data of the static test shows that the standard deviation of the longitude is 0.3155 m, the standard deviation of the Latitude is 0.1962 m and the standard deviation of the heading is 0.0981°and 0.0926°respectively.Finally, this system is applied to unmanned surface vessel for tracking straight path in water.