Abstract
The paper presents national report of Poland for IAG on positioning and
applications. The selected research presented was carried out at leading Polish research
institutions and concern precise multi-GNSS satellite positioning – relative and absolute
– and also GNSS-based ionosphere and troposphere modelling and studies. The research
resulted in noticeable advancements in these subjects confirmed by the development of
new algorithms and methods. New and improved methods of precise GNSS positioning
were developed, and also GNSS metrology was studied. New advanced troposphere models
were presented and tested. In particular, these models allowed testing IPW variability on
regional and global scales. Also, new regional ionosphere monitoring web-based services
were developed and launched.
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