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The Global Positioning System can be used to determine the attitude of a vehicle by using multiple receivers in fixed positions. The carrier phase measurements, which have millimetric precision, can be used for this purpose. However, these measurements have an unknown number of integer cycles named phase ambiguities, which have to be determined. Of all the methods known, LAMBDA is currently acknowledged...
The use of GPS carrier-phase measurements from multiple receivers can be used in the determination of multiple baseline vectors. This can be used for the high precision determination of a vehicle attitude. The use of these measurements requires the determination of the integer carrier phase ambiguities, which is a problem usually addressed with dual-frequency receivers. However, the high cost of these...
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