DEVELOPMENT OF GPS SATELLITE VISIBILITY SIMULATION METHOD UNDER URBAN CANYON ENVIRONMENT
نویسندگان
چکیده
منابع مشابه
Real-Time GPS Landslide Monitoring Under Poor Satellite Visibility
Among the available technologies such as cables and lasers, the Global Positioning System (GPS) is being increasingly used for automated continuous monitoring of landslides and avalanches. The timely identification of precursory movements of landslides could save lives and minimise collateral damage. Carrier-phase observations from four or more GPS satellites allow relative displacements to be ...
متن کاملAutonomous Vehicle Positioning with GPS in Urban Canyon Environments
The Global Positioning System (GPS) has been widely used in land vehicle navigation applications. However, the positioning systems based on GPS alone face great problems in the so called urban canyon environments where the GPS signals are often blocked by high buildings and there are not enough available satellites signals to estimate the positioning information of a x. To solve the problem, a ...
متن کاملPerformance improvement for GPS single frequency kinematic relative positioning under poor satellite visibility
Reliable ambiguity resolution in difficult environments such as during setting/rising events of satellites or during limited satellite visibility is a significant challenge for GPS single frequency kinematic relative positioning. Here, a recursive estimation method combining both code and carrier phase measurements was developed that can tolerate recurrent satellite setting/rising and accelerat...
متن کاملGeospatial Database Development for Urban Planning Using Satellite Data under Gis Environment
Indian cities are experiencing an accelerated pace of growth since independence and are now emerging as centres of domestic and international investments in an era of economic reforms, liberalisation and globalization. This has created opportunities for technologists and planning professionals to guide and develop the process of planned development and management utilizing modern technologies. ...
متن کاملAdvanced Applications of Person-based GPS in an Urban Environment
Disclaimer The contents of this report reflect the views of the authors, who are responsible for the facts and the accuracy of the information presented herein. The contents do not necessarily reflect the official views or policies of the UTRC or the Federal Highway Administration. This report does not constitute a standard, specification or regulation. This document is disseminated under the s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
سال: 2019
ISSN: 2194-9034
DOI: 10.5194/isprs-archives-xlii-2-w13-431-2019