Extension of clutter loss calculation for recommendation ITU-R P.452

With the aim of extending the method in recommendation ITU-R P.452, this paper derives a new clutter loss calculation method, which yields losses for given occurrence probabilities. We use the knife-edge model to derive a new relation between the clutter losses and occurrence probability, the only essential parameter is the average building height in the area being investigated. The proposed method also makes it possible to take frequency characteristics into account. Numerical examples are given and their results are compared to the clutter losses output by the current method in P.452.