Description of task
This task will serve to develop novel under sea-ice navigation, communication and data transfer systems and involve satellite telecommunications. The developments include the long range navigation low frequency technology (SOFAR) and navigation algorithms as well as the short range communication high frequency acoustic modems for high rate data transmission system.
In month 25-42 the development of reliable localisation estimation method and suitable navigation algorithms for various tasks will continue. The properties of SOFAR signals will be further studied. These results will provide valuable information about the possibilities and restrictions of low frequency sounds under the sea ice cover. The further testing of ENSIETA glider will provide the needed information about the dynamics of the vehicle and about the performance of the on-board sensors. The navigation algorithm software implementation will be integrated with the rest of the glider software. There will be some final tuning of the navigation algorithm as well as a lot of testing and bug-fixing with simulators and then in-situ onboard a glider in order to achieve robust and reliable operation in the actual mission. Documentation defining the mission specifications, the deployment and recovery plan and the standard information package will be worked out.
The development of the short range communication will be focused on further model development to test algorithms more rigorously. Further shallow and deep water trials of existing system will take place. Analysis and testing of faster and alternative communication algorithms for optimum data delivery will be performed.
The protocols for satellite telecommunications interfacing a lot of instruments parts will be refined. The IPEV server construction will be improved further. The data in the IPEV will be linked to DAMOCLES general data bank.
