Direction-finding system having slope control means

摘要

A direction finding system has slope control means which enables the system slope to be set at a predetermined value, wherein said system slope is the rate of change in magnitude of a received electrical signal per degree of change in the mechanical angle of signal arrival. The ratio of the first element to the second element of the Fourier series representation of the received signal is decreased in order to increase the system slope. The invention is applicable to any direction finding system which employs sum and difference signal processing techniques.