RECOMMENDATION ITU-R M.1578 - Interference calculations between non-GSO MSS or RNSS satellite systems and radio ...
ANNEX 1 - Calculation of unwanted emission levels produced by a non-GSO RNSS or an MSS systems at radio astronomy sites
1 Required parameters
2 Calculation of epfd levels at radio astronomy sites
    2.1 Definition of epfd
ANNEX 2 -Model of radio telescope antenna pattern
1 Model of main beam
2 Model of near side lobes up to 1 from the boresight
ANNEX 3 - Distribution of epfd levels
1 Division of the sky into cells of approximately equal solid angle
2 epfd distribution for a cell
3 epfd distribution in worst-case pointing directions (to be applied only if the pfd levels from satellites are ...
4 Output in terms of epfd distribution