EXPEREMENTAL RESEARCHES OF ONBOARD GPS-MEASURMENTS DATA PROSSESING METHODS FOR THE PURPOSE TO SOLVE PROBLEMSOF THE EARTH REMOTE SENSING
Slowly changing and casual fluctuations of the satellite's onboard GPS receiver generator operation makes researchers to face the need to define error in every epoch in relation to satellite's orbital parameters. Received amendments are used in pseudo-range processing and carrier phase measurements. As a result of these numerical researches, the statistical properties of results of adjustment process are examined. Requirements to the intervals and the trajectory of information amount are defined. The accuracy estimation of satellite's orbit on a photography area in various options of data processing is given. It is established that the methodology of combined phase differential measurements with the divergence of time scales in every epoch allows excluding the influence of instability in onboard GPS generator.