IEC-61108-7 SBAS Standard for Ship-Borne Receivers: preliminary testing validation activities

The IEC 61108-7 standard focuses on the minimum performance of shipborne receivers using Satellites Based Augmentation System (SBAS) L1 signals to be compliant to the performances within IMO Resolution A.1046(27). Apart from the minimum performance requirements, the standard specifies testing methods and a full set of scenarios with their pass/fail criteria. To verify the feasibility of the tests defined in the standard, a comprehensive test campaign has been carried out in a joint effort by European Satellite Services Provider (ESSP) and the European Commission Joint Research Centre (JRC), under the coordination of the European Union Agency for the Space Programme (EUSPA). This paper presents an assessment of the validity and appropriateness of the test scenarios and minimum performance requirements specified in the future IEC-61108-7 standard. To perform the campaign, dedicated setups have been designed and implemented at the JRC and at ESSP laboratories, where live and simulated GPS+SBAS signals have been used. For the analysis, all the Test Cases (TCs) described in the standard were implemented and two commercial devices were tested. From the results, it emerged that all the TCs were properly designed and implemented, therefore confirming the feasibility of the tests defined in IEC 61108-7.