AbstraclThis peper reports 8 mathod to determine the aircraft location, 89 w d as its pi(& anitude using the alruaft-tomtrd t o w mnmdcation system. It I8 shown that two receivers obssrviq the trensm&led signels may be used to locate the alruaft. Using two t r m & l e r s pieced et he nose and lad d the aircrefl It Is & w n that the pitch annude may be estlmaed. Fwthermore. the iocatlon ol the SlraaH Is hportarn to determine the poper pitch annude and velociiy.