Method for determining a value for the phase integer ambiguity a

Details Method for determining a value for the phase integer ambiguity a Method for determining a value for the phase integer ambiguity a

1998-05-14

2000-04-18

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

G01S 502, H04B 7185

Patent

active

060520825

ABSTRACT:
A method for determining a value for an integer number of phases using a computerized device, having steps: (a) providing an initial set comprising a plurality of coded integer ambiguity strings; (b) based upon a computed fitness value for each string in the initial set, choosing a selected plurality of integer ambiguity strings; and, (c) using information components from at least a first and second string of this selected plurality, generating a first and second offspring ambiguity string for evaluation. Additional steps: prior to choosing, calculating a probability of selection in connection with each computed fitness value; and generating additional offspring ambiguity strings for which fitness values can be computed. An optimal determination of the value can be used for determination of a position. The method of the invention can be incorporated into a global positioning system (GPS). Also, a computerized device for receiving a signal transmitted from a distant source (device has a processor for determining a value for an integer number of phases.). And a system for determining a position having a source for transmitting a signal wave and a computerized device, located a distance from the source.

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