Abstract
Carrier phase measurements (CPM) can be used effectively to develop GPS positioning accuracies. However, the cycle slip in distance measurements from a receiver's antenna to GPS satellites has placed limits on the applications for kinematic measurements on vehicles, ships and low-orbit spacecrafts. When the speed of a spacecraft-borne receiver is as high as several kilometres per second it is necessary to solve real-time in terms of measured distances from the receiver's antenna to GPS satellites, so as to determine its real-time positions. This paper proposes a step solution based on a synergist of four simultaneous observables for the measured distances per instant without an application of the P-code, surveying the time difference between dual frequency signals with a hardware in the described receiver.
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