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2 TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2 2023

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The DIA-method for navigational integrity

Teunissen P. J. G.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2023

Vol. 17 No. 1

157--161

In this contribution we present a review of the DIA-method to ensure navigational integrity. The DIA-method rigorously combines parameter estimation and statistical testing for the Detection, Identification and Adaptation of multivariate and multiple model misspecifications. We describe the statistical properties of the so-obtained DIA-estimator together with its probability density function. Numerical examples are given to highlight various aspects of the navigational DIA-estimator.

Zalewski P., Bergmann M., Wawruch R., Weintrit A.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2023

Vol. 17 No. 4

863--869

In 2020 several member states initiated at IMO forum (NCSR subcommittee) a process to create a single set of generic performance standards consolidating all existing performance standards for shipborne satellite navigation system receiver equipment without creating any new requirements. After over 4 years the resultant generic framework for GNSS/RNSS subsystems has not been adopted yet and awaits further amendments. Analysis of the proposed standards with stress on harmonization issues of the existing, IMO recognized, global and regional navigation satellite systems and the expected impact of these generic standards of satellite navigation receivers on the maritime user are presented in this paper. Additionally the strengths, weaknesses, opportunities, and threats awaiting maritime or shipborne GNSS/RNSS equipment standardization process are outlined in the paper.