Towards automated nautical chart compilation and verification of output topology and safety Tamer Nada, Christos Kastrisios, Brian Calder, Christie Ence, Craig Greene and Amber Bethell | GNSS Constellation Specific Monthly Analysis Summary: April 2024 Narayan Dhital | WILDetect Kaya Kuru, Stuart Clough, Darren Ansell, John McCarthy and Stephanie McGovern | Old Coordinates
WILDetect: An intelligent platform to perform airborne wildlife census automatically in the marine ecosystem
Kaya Kuru, Stuart Clough, Darren Ansell, John McCarthy and Stephanie McGovern
WILDetect, has been built using an ensemble of supervised ML and RL techniques. It employs several hybrid techniques to segment, split and count maritime species – in particular, birds – in order to perform automated censuses in a highly dynamic marine ecosystem. The efficacy of the proposed approach is demonstrated by experiments performed on 26 surveys which include Northern gannets (Morus bassanus) by utilising retrospective data analysis techniques. We present here the first part of the paper. The concluding part will be published in next month.... [more]
GNSS constellation specific monthly analysis summary:April 2024
Narayan Dhital
In this month’s issue, there is an additional monitoring of the satellite Timing Group Delay (TGD)/Broadcast Group Delay (BGD) parameters in terms of their applicabilities. (Dhital et. al, 2024) provides a brief overview of the necessity and applicability of monitoring the satellite clock and orbit parameters.... [more]
Towards automated nautical chart compilation and verification of output topology and safety
Tamer Nada, Christos Kastrisios, Brian Calder, Christie Ence, Craig Greene and Amber Bethell
A fully automated solution for generating nautical charts from the highest level of detail data, to the appropriate scale, can streamline and minimize the time and effort needed for chart production. Respecting the nautical charts constraints, i.e., legibility, morphology, topology, and safety and especially the latter, is the main reason why current generalization processes and algorithms developed for land mapping are not directly applicable to the maritime domain and safety of navigation related products.... [more]
Finnair cancels flights amid increased GNSS jamming
NextNav petitions FCC for new spectrum band
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ESA and Luxembourg extend space resources collaboration
Muon Space and Earth Fire alliance unveil FireSat constellation
First two worldview legion spacecraft performing well after launch