This Recommendation describes radiodetermination radar systems antenna patterns to be used for singleentry and aggregate interference analysis. Given knowledge about antenna 3 dB beamwidth and first peak side-lobe level, the proper set of equations for bothazimuth and elevation patterns may be selected. Both peak, for single interferer, and average patterns, for multiple interferers, are defined.
ITU-R M.1851-2009 Referenced Document
ITU-R M.1652 Dynamic frequency selection in wireless access systems including radio local area networks for the purpose of protecting the radiodetermination service in the 5 GHz band*， 2011-05-01 Update
ITU-R M.1851-2009 history
2009ITU-R M.1851-2009 Mathematical models for radiodetermination radar systems antenna patterns for use in interference analyses