Patent ID: 7728767

Claim:
A phase ambiguity resolution method for a satellite-based positioning system, the method comprising the following acts: transmitting electromagnetic radiation by a transmitting unit, the electromagnetic radiation having N carrier frequencies with at least one first carrier frequency, one second carrier frequency, and one third carrier frequency, where N≧3; receiving the electromagnetic radiation by a receiving unit; deriving in a derivation act K pseudo-paths and L carrier phases as M distance data, where M=K+L, from the received radiation; and resolving an integral phase ambiguity from a linear combination of the carrier phases and the pseudo-paths for the position determination, wherein not more than M≦2N−1 distance data are used; and wherein: at least two pseudo-paths and at least two carrier phases are used as distance data, and the first and second carrier phases, respectively associated with the first carrier frequency and the second carrier frequency and defining first and second distance data, and at least one of the two pseudo-paths, associated with the third carrier frequency and defining a third distance data, are linearly combined.