دانلود کتاب Propagation of Radiowaves

Propagation of Radiowaves introduces the basic concepts and mechanisms of radiowave propagation engineering in both the troposphere and ionosphere, an understanding of which is fundamental to the effective use of the radio spectrum for radiocommunication. Reflecting the wide experience of the exceptional group of authors, the contents provide a firm background to established theory and introduce the most appropriate models, methods and procedures which are of use to spectrum planners and system designers and operators in assessing the estimated performance of radio systems.The field of radio communications continues to change rapidly and the third edition of this outstanding and successful book has been fully updated to reflect the latest developments. The relevant Recommendations of ITU-R Study Group 3 are discussed and put into context.