自建基准站进行GPS伪距差分定位的试验研究  

Experimant Research on GPS Differential Pseudorange Positioning System

作　　者：张静[1] 朱炎[1] 金志华[1] 

机构地区：[1]上海交通大学仪器工程系,200030

出　　处：《船舶工程》2003年第4期68-71,共4页Ship Engineering

摘　　要：采用GPS技术进行船舶导航定位通常都基于位于沿海的信标台差分信号。在接收不到信标信号时 ,可采用GPS伪距相对定位进行载体定位。本文用一套采用伪距相对差分GPS系统对其定位精度和实时性进行了试验研究 ,静态试验表明其单点相对定位精度达到 1m(1σ) ;动态试验表明 ,不管是慢速还是快速移动 。Ship navigation and positioning usually base on the differential signals from beacon stations.When the signals are blocked,pseudorange dynamic differential positioning method can also be applied to provied better precision than one single frequency GPS receiver's.This paper presents the experiment research on the positioning precision and real time behavior for a developed pseudorange differential positioning system.By static tests,the precision of rover station arrives to lm(1σ).The track lines fit to the road conditions despite of slow moving or fast moving in dynamic experiments.

关 键 词：GPS 伪距差分技术 全球定位系统 船舶导航 基准站 试验研究 

分 类 号：U675.7[交通运输工程—船舶及航道工程]