VHF Active Phased Array Radar for Atmospheric Remote Sensing at NARL

摘要

A pilot 53-MHz 133-element active phased array radar has been developed at National Atmospheric Research Laboratory for probing the atmosphere. This radar is developed with an objective to validate the technology concepts like outdoor installation of solid-state transmit-receive modules, beam steering, optical fiber network based control, interface and monitoring of the TR modules etc. This system is developed as a precursor R&D activity for the ultimate up-gradation of the existing 1024-element Indian MST radar (located at Gadanki) into a full-fledged active phased array system. System design philosophy, realization and preliminary observations are presented in this paper.