Continuous high-accuracy locating method and apparatus

摘要: Method and apparatus for locating an object (2) that is to be located relative a reference (1), by electrically generating signal (SL) modulating carrier with pseudo-noise. The modulation continuous of the ultra-wideband (UWB) type. Analysis using cross-correlation function between said received reflected signals (SRR1, SRR2) serves segregate waves have followed direct path any interfering indirect paths, so as able deduce therefrom shortest overall propagation time corresponding those (OL) paths. invention applies in particular rotary wing aircraft, e.g. helicopter drone.