Policy on Intellectual Property Right (IPR)
Annex 1
�1���� Introduction
�2���� Basic
concepts
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2.1���� Fresnel ellipsoids and Fresnel zones
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2.2���� Penumbra width
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2.3���� Diffraction zone
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2.4���� Obstacle surface smoothness criterion
������� 2.5���� Isolated obstacle
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2.6���� Types of terrain
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2.7���� Fresnel integrals
�3���� Diffraction
over a spherical Earth
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3.1���� Diffraction loss for over-the-horizon paths
����������������� 3.1.1���� Numerical
calculation
����������������� 3.1.2���� Calculation
by nomograms
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3.2���� Diffraction loss for any distance at 10 MHz and above
�4���� Diffraction
over isolated obstacles or a general terrestrial path
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4.1���� Single knife-edge obstacle
�� �����4.2���� Single rounded obstacle
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4.3���� Double isolated edges
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4.4�� ��Multiple
isolated cylinders
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4.5���� Method for a general terrestrial path
����������������� 4.5.1���� Bullington
model
����������������� 4.5.2���� Complete
method
�5���� Diffraction
by thin screens
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5.1���� Finite-width screen
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�5.2���� Diffraction by rectangular apertures and composite
apertures or screens
����������������� 5.2.1���� Diffraction
by a single rectangular aperture
����������������� 5.2.2���� Diffraction
by composite apertures or screens
�6���� Diffraction
over a finitely conducting wedge
�7���� Guide
to propagation by diffraction
Attachment 1� to Annex 1�
Calculation of cylinder parameters
�1���� Diffraction
angle and position of vertex
�2���� Cylinder
parameters
Attachment 2� to Annex 1�
Sub-path diffraction losses
�1���� Introduction
�2���� Method