城市勘测
城市勘測
성시감측
Urban Geotechnical Investigation & Surveying
2015年
5期
91-94
,共4页
CORS%北斗增强系统%融合升级
CORS%北鬥增彊繫統%融閤升級
CORS%북두증강계통%융합승급
CORS%compass enhancement system%fusion upgrade
以常州市连续运行参考站系统( CZCORS)为基础,采用融合升级的方法建立了北斗增强系统,从时间和空间可用性、定位时效性、定位精度等几个方面对北斗增强系统和原有双星系统进行了对比测试. 结果显示北斗增强系统可以显著提高CZCORS的时间和空间可用性,特别是每日11:00~16:00电离层活跃时段及有高大建筑、树木等遮挡的观测条件下. 同时,北斗增强系统可以提升定位速度约10%,但定位精度略有下降.
以常州市連續運行參攷站繫統( CZCORS)為基礎,採用融閤升級的方法建立瞭北鬥增彊繫統,從時間和空間可用性、定位時效性、定位精度等幾箇方麵對北鬥增彊繫統和原有雙星繫統進行瞭對比測試. 結果顯示北鬥增彊繫統可以顯著提高CZCORS的時間和空間可用性,特彆是每日11:00~16:00電離層活躍時段及有高大建築、樹木等遮擋的觀測條件下. 同時,北鬥增彊繫統可以提升定位速度約10%,但定位精度略有下降.
이상주시련속운행삼고참계통( CZCORS)위기출,채용융합승급적방법건립료북두증강계통,종시간화공간가용성、정위시효성、정위정도등궤개방면대북두증강계통화원유쌍성계통진행료대비측시. 결과현시북두증강계통가이현저제고CZCORS적시간화공간가용성,특별시매일11:00~16:00전리층활약시단급유고대건축、수목등차당적관측조건하. 동시,북두증강계통가이제승정위속도약10%,단정위정도략유하강.
Based on the continuous operation reference station system of Changzhou City( CZCORS) ,a fusion method is used to establish the Compass enhancement system. A comparative test of the Compass enhancement system and the o-riginal system was conducted from the aspects of time and space availability,timeliness and positioning accuracy and the results show that the Compass enhancement system can significantly improve the time and space availability of CZCORS especially when the time is between 11:00 am and 4:00 pm daily when the ionosphere is active or the observation condi-tion is poor where there are tall buildings and tree. At the same time,the Compass enhancement system can improve the positioning speed of about 10%,while the positioning accuracy is reduced slightly.
