- Number: 635/PP/GRO/RCH/17/9877
The Dual-Frequency model will cover the Galileo E1/E5a frequencies and the GPS L1/L5 frequencies.
In addition, a model will be elaborated and validated to cover for the single frequency cases GPS L5, Galileo E1 and Galileo E5a.
Finally, all models will be compared against the currently used model (Appendix J.2.4 Variance of Airborne Receiver Errors of RTCA SC-159 DO-229D ).
Validation of the model will include real flight test campaigns with various aircraft types, each of them representative of existing aircraft categories and different behaviours of airframe multipath. GNSS signal measurements will be taken in all phases of flight (take-off, initial climb, en-route climb, cruise, descent, approach, landing and roll-out).
Please note that from 1 January 2012, all tendering documents relating to the Directorate-General for Internal Market, Industry, Entrepreneurship and SMEs will be published through a European Commission-wide platform called "eTendering". The tendering documents will not be published here anymore.
The documents will always be visible and downloadable, but if you register on eTendering, you will be able to ask questions and you will be informed automatically on all changes that may be published (additional documents, answers to questions, etc.).
 RTCA SC159 DO-229D Minimum Operational Performance Standards for Global Positioning System/Wide Are Augmentation System Airborne Equipment