Investigation of the Transfer of Monopulse Tracking Between Two Coherent Point Sources.

摘要

This investigation deals with the effects of phase and amplitude differences between two coherent point source radiators on the tracking behavior of a monopulse radar. The tracking function of the radar is modelled in a single plane containing two point sources located at a finite distance from the radar antenna. The complex illumination of the antenna aperture by the point sources and the resulting monopulse sum and difference antenna responses are derived, including the effects of finite range. The monopulse discriminator characteristic is formed using the antenna responses. A set of calibration curves are presented which show the transfer of the tracking point of the radar from one source to the other as the phase and amplitude differences between the sources vary. The application of this investigation is in specifying the excitation of two point sources to move the tracking point of a radar smoothly and continuously from one source to the other, in order to simulate continuous target motion using discrete positioned radiating elements. Keywords: Canada, Coherent arrays, Interferometers. (KR)