Recent researches show not only white noise but also colored noise is widely existed in various continuous GPS station coordinate time series,and the colored noise also has an important influence on G
Precise phase ambiguity resolution is needed to obtain high-precise ionospheric delay with the phase observations,extreme wide-lane (EWL) combination can be easily fixed owing to the long wavelength,M
OFDM signal systems have been widely used in mobile communications,digital satellite TV,and provided higher transmission rate and positioning information service.It has the potential in timing and Ran
Receiver autonomous integrity monitoring (RAIM) is the key approach to monitor the integrity of Global Navigation Satellite System (GNSS).The paper focuses on the RAIM algorithm Based on Multi-Constel
Navigation message is one of basic data that user realize positioning.It is send to all users by the navigation signal and realizes the position and time function.The navigation message includes ephem
The polynomial fitting method has been using widely to detect cycle slips on the carrier phase of GNSS for its easily computer programming and simple algorithm.But the observation errors and sampling
The ionospheric delay is the predominant error source limiting the required positioning accuracy of GNSS whose estimation accuracy affects the effectiveness of ionospheric delay correction directly,es
Depending on the orbit determination and time synchronization (ODTS) process,we consider at least 2 receivers driven by active Hydrogen Maser on the ground,then we analyze the effect of ODTS system no
Several analysis centers(AC) and a product integration and service center (ISC) have been built by the international GNSS continuous Monitoring and Assessment System (iGMAS) currently.ISC analyzes the