15, February 2019

ESA Open Invitation to Tender AO9582
Open Date: 12/02/2019
Closing Date: 09/04/2019 13:00:00

Status: ISSUED
Reference Nr.: 18.1ET.28
Special Prov.: DE+IT+FR
Tender Type: C
Price Range: > 500 KEURO
Products: Ground Segment / Ground Station / RF equipment / Transmitter and Receiver assemblies, Frequency converters, …
Techology Domains: RF Systems, Payloads and Technologies / Radio Navigation Systems/Subsystems / Ground Receivers
Establishment: ESTEC
Directorate: Directorate of Tech, Eng. & Quality
Department: Electrical Engineering Department
Division: Radio Frequency Systems & Payloads Offic
Contract Officer: Seynaeve, Christophe Rene R.
Industrial Policy Measure: N/A – Not apply
Last Update Date: 13/02/2019
Update Reason: Modified a Clarification(English version) 1

The objective of this activity is to develop a railway GNSS receiver chain technology enabler, to support the testing and validation of integrity concepts, algorithms, and techniques for receivers in a railway environment. In addition, the activity aims to develop, test and consolidate integrity techniques suitable for GNSS-based virtual balise detection in the European Rail Traffic Management System (ERTMS) / European Train Control System (ETCS). A key issue for use of GNSS in safety critical train control systems is the lack of confidence on the residual positioning error. Errors caused by feared events in the railway environment such as multipath, non-line of sight conditions and electromagnetic interference (EMI) can lead to an increased risk of hazardous misleading information (i.e. position not bounded by confidence interval). Effective barriers are needed to detect and mitigate these feared events such that the threat of under-bounding the residual errors is mitigated to the required level. This activity foresees the development such barriers and the necessary tools to test and validate them. This activity foresees the following tasks: 1. Review of the state of the art and consolidation of requirements, 2. Design and development of an advanced real-time receiver platform comprised of a complete GNSS receiver chain. The platform shall support the testing of mitigation and suppression techniques for feared events inthe railway environment at all stages of the receiver chain including antenna, RF domain, DSP domain (pre-correlation, correlation),range domain and position domain. The platform shall also provide support for GNSS/INS integration architectures, 3. Design and implementation of integrity concepts, techniques and algorithms on the receiver platform to mitigate feared events in the railway environment, 4. Testing and validation of developed integrity concepts, techniques and algorithms using the receiver platform.

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