A feasibility study of an adaptive receiving system for u. h. f. television

摘要

This report describes the results of an investigation into the feasibility of producing an adaptive receiving system for u.h.f .television suitable for rebroadcast links in situations where, with standard techniques, there would be unacceptable interference. The system is designed to adjust continuously the directivity pattern of a receiving aerial array so as to steer minima onto the bearings of unwanted transmissions.nAn experimental equipment was constructed and shown to work successfully. Its design and performance are discussed and suggestions are made for an improved system designed to overcome some limitations in its performance.nThe field of application to rebroadcast links is discussed.