A Method for Determining the Field Strength Distribution of a Tropospheric Scatter Communications Link.

摘要

A method is developed for determining the on and off path field strengths for a typical tropospheric scatter communications link. The earth is assumed to be smooth and homogeneous over the entire path. A spherically symmetric atmospheric model is used. Meteorological conditions which affect tropospheric communications are discussed as well as a method for determining the refractive index from meteorological charts. A field source representation is developed which can be easily adapted to specific site facilities. The overall field problem is developed in four parts:the direct field,the reflected field,the diffracted field and the scattered field.