Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements (G01S5/12 takes precedence )

Full Title

Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations > using radio waves (using satellite radio beacon systems for determining position G01S19/00) > Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements (G01S5/12 takes precedence )