Annex 1 Determination of the visibility statistics
of space stations operating in circular non-geosynchronous orbits as seen by a
terrestrial station
1 Introduction
2 The satellite in the inertial
frame
3 Transformation to Earth
coordinates
4 Distance and azimuth to a
terrestrial station
5 Satellite elevation and
angular distance from main beam
Annex 2 Simulation of
interference into analogue fixed wireless routes from LEO satellites
1 Introduction
2 Description of the model
2.1 Input
2.2 Output
3 Simulation results
4 Conclusions
Annex 3 Determination of the
effects of emissions from space stations non-GSO on FS digital microwave
receivers
1 Introduction
2 Statistical modelling
3 Interference determination
4 Modelling the effect of
interference on digital systems
5 An
alternative derivation of FDP
6 Sample results of simulation
7 Interim conclusions
Annex 4 Methodology to determine
the effect of interference on digital
receivers employing diversity
1 Introduction
2 Switched diversity
3 Maximum power combining
4 Diversity fade margin loss
(DFML)
5 Summary
Annex 5 Considerations of the
uniformity of the interference environment in a month
Annex 6 The methodology for
developing the cumulative distribution of the ratio of received power to the sum of noise and interference
powers from results of simulations of
the emissions from constellations of
non-GSO space stations
1 Relationship between C/I
and C/(N + I)
2 Modelling the cumulative
distribution of fade depth
3 An example
4 Conclusions
Annex 7 Analytical method for
evaluating the interference to a station in the FS from a non‑GSO
satellite constellation using circular or elliptical orbits including HEOs
1 Introduction
2 Case of circular orbits
3 Case of
elliptical orbits
3.1 Range of a satellite
3.2 pdf of the satellite argument
3.3 Determination
of the argument as a function of time
3.4 Determination of satellite
locations
4 Elevation
and azimuth angles to the satellites under free space propagation conditions
5 Separation
angles between the FS antenna direction and visible satellites
6 Summary
of features of the analytical method