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Inspec keywords: radio direction-finding; antenna arrays; ionospheric measuring apparatus; HF radio propagation; direction-of-arrival estimation; ionospheric electromagnetic wave propagation; artificial satellites; receiving antennas; F-region; radiowave interferometry
Subjects: Radionavigation and direction finding; Ionospheric electromagnetic wave propagation; Radiowave and rocket soundings of the ionosphere; Signal processing and detection; Antenna arrays; Instrumentation and techniques for aeronomy, space physics, and cosmic rays; F-region; Atmospheric, ionospheric and magnetospheric techniques and equipment; Radiowave propagation