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MLAMBDA: a modified LAMBDA method for integer least-squares estimation

Chang, X. -W. / Yang, X. / Zhou, T.

Abstract The least-squares ambiguity Decorrelation (LAMBDA) method has been widely used in GNSS for fixing integer ambiguities. It can also solve any integer least squares (ILS) problem arising from other applications. For real time applications with high dimensions, the computational speed is crucial. A modified LAMBDA (MLAMBDA) method is presented. Several strategies are proposed to reduce the computational complexity of the LAMBDA method. Numerical simulations show that MLAMBDA is (much) faster than LAMBDA. The relations between the LAMBDA method and some relevant methods in the information theory literature are pointed out when we introduce its main procedures.

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MLAMBDA: a modified LAMBDA method for integer least-squares estimation

Chang, X. -W. / Yang, X. / Zhou, T.

Abstract The least-squares ambiguity Decorrelation (LAMBDA) method has been widely used in GNSS for fixing integer ambiguities. It can also solve any integer least squares (ILS) problem arising from other applications. For real time applications with high dimensions, the computational speed is crucial. A modified LAMBDA (MLAMBDA) method is presented. Several strategies are proposed to reduce the computational complexity of the LAMBDA method. Numerical simulations show that MLAMBDA is (much) faster than LAMBDA. The relations between the LAMBDA method and some relevant methods in the information theory literature are pointed out when we introduce its main procedures.

MLAMBDA: a modified LAMBDA method for integer least-squares estimation

Chang, X. -W. / Yang, X. / Zhou, T.

Abstract The least-squares ambiguity Decorrelation (LAMBDA) method has been widely used in GNSS for fixing integer ambiguities. It can also solve any integer least squares (ILS) problem arising from other applications. For real time applications with high dimensions, the computational speed is crucial. A modified LAMBDA (MLAMBDA) method is presented. Several strategies are proposed to reduce the computational complexity of the LAMBDA method. Numerical simulations show that MLAMBDA is (much) faster than LAMBDA. The relations between the LAMBDA method and some relevant methods in the information theory literature are pointed out when we introduce its main procedures.

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Title:

MLAMBDA: a modified LAMBDA method for integer least-squares estimation

Contributors:

Chang, X. -W. (author) / Yang, X. (author) / Zhou, T. (author)

Published in:

Journal of Geodesy ; 79

Publication date:

2005

ISSN:

DOI:

https://doi.org/10.1007/s00190-005-0004-x

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Geodäsie , Geodynamik

Classification:

BKL: 38.73 Geodäsie

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