CONTENTS

Recommendation ITU-R P.372-17
Policy on Intellectual Property Right (IPR)
PART 1
General
������� 1.1���� Sources of radio noise
������� 1.2���� Terms for the specification of noise intensity and their interrelationship
����������������� 1.2.1���� Noise factor
����������������� 1.2.2���� r.m.s noise field strength
����������������� 1.2.3���� Noise temperature
����������������� 1.2.4���� Noise variability
PART 2
Noise levels as a function of frequency
PART 3
Noise from atmospheric gases and the Earth�s surface
������� 3.1���� Radio noise due to the Earth�s atmosphere for earth stations
����������������� 3.1.1���� Instantaneous brightness temperature prediction method
����������������� 3.1.2���� Statistical brightness temperature prediction method
������� 3.2���� Radio noise due to the Earth�s atmosphere and the Earth�s surface for space stations
PART 4
Brightness temperature due to extra-terrestrial sources
������� 4.1���� Brightness temperature due to extra-terrestrial sources
PART 5
Atmospheric noise due to lightning
������� 5.1���� Atmospheric noise due to lightning
PART 6
Man-made noise
������� 6.1���� Outdoor man-made noise
����������������� 6.1.1���� Additive white Gaussian noise
������� 6.2���� Indoor man-made noise
����������������� 6.2.1���� Additive white Gaussian noise
PART 7
The combination of noises from several sources
������� 7.1���� The combination of noises from several sources