Evaluation of the effect of earth ionosphere inhomogeneities on the accuracy of satellite trajectory measurements
Abstract
Experimental data on the phase fluctuations of satellite radio signals are used to estimate the errors of satellite trajectory measurements associated with the structural inhomogeneity of the earth ionosphere. It is shown that, for the currently used decimeter-band trajectory measurement systems, the fluctuation errors do not exceed several millimeters per second in velocity and several centimeters in distance. To calculate the fluctuation errors of trajectory measurements using the method proposed here, only two characteristics have to be known: spectral density of radio wave phase fluctuations and transfer function of the measuring devices.
- Publication:
-
Radiotekhnika i Elektronika
- Pub Date:
- May 1990
- Bibcode:
- 1990RaEl...35.1081A
- Keywords:
-
- Ionospheric Disturbances;
- Radio Signals;
- Spacecraft Trajectories;
- Trajectory Measurement;
- Error Analysis;
- Ionospheric Propagation;
- Phase Modulation;
- Transfer Functions;
- Space Communications, Spacecraft Communications, Command and Tracking