APPLYING FIELD PROGRAMMABLE GATE ARRAYS IN SYSTEMS OF MULTICHANNEL DIGITAL PROCESSING OF SATELLITE NAVIGATION SIGNALS

Abstract

The study analyzes multichannel digital satellite navigation signal processing systems for unmanned aerial vehicles. To advance interference insusceptibility of navigation equipment on the basis of adaptive change in settings, it is advisable to apply a field programmable gate arrays in order to implement variations of algorithms of signal processing without reconfiguring the equipment’s structure in changes in radioelectronic settings. A navigation complex with the function of interference insusceptibility is developed based on the field programmable gate arrays. It may simultaneously receive signals from such satellite navigation systems as GLONASS, GPS, QZSS, BeiDou, Galileo, and NavIC via four independently tuned channels and their digital processing using adaptive filtering algorithms. Patterns in spatial selectivity of signals are studied, as are the possibilities for navigation equipment adaptability in interference settings using programs for electrodynamic modeling of adaptive antenna arrays ‒ SolidWorks, Altium Designer, and Quartus.