Geodetic GPS interferometer design work at the Space Research Centre of the Polish Academy of Science
Abstract
The feasibility and potential accuracy of employing GPS signals and mobile receivers as a very long base interferometry (VLBI) network for precision geodesy is explored. The primary listening devices would be large radio telescopes tuned to both quasars and GPS spacecraft. The mobile units would densify the receiver network, particularly for the GPS signals. Numerical models are defined for the SNR, expected errors, and bandwidth synthesis to lower the SNR. A block diagram is provided for a mobile receiver which would treat the GPS signals as white noise. Finally, software features are considered which would be necessary for simulating the system and establishing effective operational and data processing procedures.
- Publication:
-
Stockholm International Astronautical Federation Congress
- Pub Date:
- October 1985
- Bibcode:
- 1985stoc.iafcW....K
- Keywords:
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- Celestial Geodesy;
- Global Positioning System;
- Interferometers;
- Very Long Base Interferometry;
- Cross Correlation;
- Design Analysis;
- Navstar Satellites;
- Signal Processing;
- Software Engineering;
- Space Communications, Spacecraft Communications, Command and Tracking