Applied Technologies of FMCW Radio Altimeters for Next-Generation Aviation and Automotive Systems
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Beschreibung
Abstract
The field of Frequency Modulated Continuous Wave (FMCW) radar represents a significant area of modern intelligent transportation systems. Owing to their ability to simultaneously determine the distance and relative velocity of objects through the exploitation of the Doppler effect, FMCW radars have found widespread application, particularly in automotive Advanced Driver Assistance Systems (ADAS) and autonomous driving technologies. Building upon these technological advances, the presented monograph extends their application to aviation by investigating the use of onboard FMCW radio altimeters as cost-effective terrain collision avoidance systems for small aircraft and helicopters. The monograph provides a comprehensive theoretical and experimental analysis of the Doppler component contained in the beat signal for predicting the time to terrain collision, experimentally validates the proposed concepts under real flight conditions, and introduces novel methods for improving measurement accuracy. The proposed solutions extend the functionality of existing radio altimeters by incorporating active Controlled Flight Into Terrain (CFIT) warning capabilities without the need for expensive onboard terrain awareness systems, thereby contributing significantly to the enhancement of flight safety.
Autor*in
Pavol Kurdel
Themen in »Applied Technologies of FMCW Radio Altimeters for Next-Generation Aviation and Automotive Systems«
FMCW Radio Altimeters Doppler effect Terrain collision avoidance Controlled Flight into Terrain (CFIT), Helicopter flight safety Radio altimeter signal processing Mathe-matical modelling Terrain awareness, Low-altitude helicopter operations