摘要
在分析GPS和GLONASS联合定位数学模型的基础上 ,利用JAVAD双频双星接收机获得的实测数据进行了基线的联合解算 ,结果表明 :由于大多数时间内所能观测到的GLONASS星仅为 1～ 2颗 ,它对基线解算结果影响甚微 ;即使在某些时段同步观测到 3～ 5颗GLONASS卫星 ,当GPS卫星数大于 5颗时 ,GLONASS GPS联合解算对基线解算精度也只有毫米级的提高 ;但当GPS卫星数小于 5颗 ,GLONASS卫星数大于等于 2颗时 ,GPS
On the basis of analyzing the combined mathematics model of GPS/GLONASS,this paper mainly discusses the role of GLONASS in the baseline solution.The result resolved with the data collected from JAVAD dual\|frequency dual\|system receiver shows that at the most time,GLONASS has little affects on the baseline resolution because the GLONASS satellite number simultaneously observed usually is 1 or 2;but when observed GPS satellite number is less than 5,and GLONASS number equal or greater than 2,the combined solution can improve the baseline result.
出处
《工程勘察》
CSCD
北大核心
2001年第3期50-52,共3页
Geotechnical Investigation & Surveying
