A low-cost, near-real-time two-UAS-based UWB emitter monitoring system

Abstract

Sun Tzu, the Chinese strategist and philosopher of war, noted in his military treatise The Art of The War, If you know your enemies and know yourself, you can win a hundred battles without a single loss; if you only know yourself, but not your opponent, you may win or may lose; if you know neither yourself nor your enemy, you will always endanger yourself [1]. It is necessary to know the locations of all entities for effective situational awareness and decision making. On the battlefield, many active and passive sensors have been applied. Active sensors include pulse-Doppler radar developed for detecting and localizing intruding aircraft, synthetic-aperture radar designed for remotely obtaining the image of an interested target area, and ground moving target indication radar designed to monitor the ground-based moving vehicles. Passive sensors include electro-optical infrared cameras designed to obtain battlefield images in daytime and during night and passive radar designed for detecting aircraft using other radio-frequency (RF) sources, such as radio and television stations. Passive sensors, such as radar warning receivers, direction-finding seekers, and detecting and localizing RF emitters were designed for threat warning of air vehicles.