FIELD: space radio navigation and geodesy. SUBSTANCE: navigation radio signals of satellites are received by N-channel receiver mounted on object, range from object to each satellite is found by measurement of time shifts of code sequences formed by satellite generators with regard to code sequence formed by object generators and of components of vector of velocity and by measurement of received Doppler shifts of frequency with use of systems tracking carriers. N-channel receiver has one driving channel and several driven channels, it determines difference between ranges measured by driven receiving channels and range measured by driving channel. It also determines difference of rates of change of ranges between rates of change of ranges computed by measurements of Doppler shifts of frequency by driven channels and rate of change of range computed by change of Doppler shift of frequency by driving receiving channel. Then determination of double differences of ranges and double differences of rates of change of ranges is conducted by way of mutual subtraction of differences of ranges and differences of rates of change of ranges. EFFECT: increased accuracy of determination of coordinates of position, components of vector of velocity of determined object by navigation signals of spacecraft of satellite radio navigation systems, with use of radio signals of ground and air radiation sources and with use of radiations of spacecraft of other systems and simulators. 4 cl, 2 dwg
