The least-squares ambiguity decorrelation adjustment: a method for fast GPS integer ambiguity estimation
نویسندگان
چکیده
منابع مشابه
The least-squares ambiguity decorrelation adjustment: a method for fast GPS integer ambiguity estimation
The GPS double difference carrier phase measurements are ambiguous by an unknown integer number of cycles. High precision relative GPS positioning based on short observational timespan data, is possible, when reliable estimates of the integer double difference ambiguities can be determined in an efficient manner. In this contribution a new method is introduced that enables very fast integer lea...
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The least-squares ambiguity decorrelation adjustment is a method for fast GPS double-dierence (DD) integer ambiguity estimation. The performance of the method will be discussed, and although it is stressed that the method is generally applicable, attention is restricted to short-baseline applications in the present contribution. With reference to the size and shape of the ambiguity search spac...
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Precise positioning in Real Time Kinematic (RTK) applications depends on the accurate resolution of the phase ambiguities. In RTK positioning, ambiguity parameters are highly correlated, especially when the positioning rate is high. Consequently, application of de-correlation techniques for the accurate resolution of ambiguities is inevitable. Phase ambiguity as positioning observations by the ...
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This contribution presents the probability distribution of the ' xed' GPS baseline. This is the baseline which is used in fast and high precision GPS kinematic positioning. It follows from an ambiguity resolution process in which the carrier phase ambiguities are estimated as integers. For the estimation of the carrier phase ambiguities the principle of integer least-squares is used. By means o...
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This paper intends to shed light on the decorrelation or reduction process in solving integer least squares (ILS) problems for ambiguity determination. We show what this process should try to achieve to make the widely used discrete search process fast and explain why neither decreasing correlation coefficients of real least squares (RLS) estimators of the ambiguities nor decreasing the conditi...
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ژورنال
عنوان ژورنال: Journal of Geodesy
سال: 1995
ISSN: 0949-7714,1432-1394
DOI: 10.1007/bf00863419