DLR - Institute of Communications and Navigation - Aktuelle Projekte R

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Current Projects R - Z

RADIANT

The project "Retrodirective antennas combining digital and analog techniques" (RADIANT) aims at developing new types of retrodirective antenna systems for high-rate satellite communications and high altitude platform (HAP) based safety-of-life communications. In the course of the project, novel antenna system architectures are developed. Their properties are carefully analysed by detailed numerical simulations. These cover the whole signal chain, including antenna, RF front-ends and digital signal processing. The most promising architectures are validated using simplified functional demonstrators.

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RHINOS - Railway High Integrity Navigation Overlay System

RHINOS (Railway High Integrity Navigation Overlay System) supports the safety-critical train localization function for train control in emerging regional and global markets. The RHINOS pillar is the GNSS infrastructure realized for the aviation application with additional layers that meet the rail requirements in the difficult railway environments. The Rhinos ambition is a positive step beyond the proliferation of GNSS platforms, mainly tailored for regional applications, to favor a global solution to release the potential benefits of the EGNSS (GALILEO and EGNOS) in the fast growing train signaling world market. The RHINOS work program includes the investigation of candidate concepts for the provision of the high integrity needed to protect the detected position of the train, as required by the train control system application. Moreover local augmentation elements, ARAIM techniques and other sensors on the train are the add-on specific assets for mitigating the hazards due to the environmental effects which dominate the rail application. A further objective of RHINOS is to contribute to the definition of a standard for the Railway High Integrity Navigation Overlay System leveraging on the EU-US Cooperation Agreement on ARAIM.

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	REACTOR Aviation safety is of paramount concern to everyone in the aerospace industry. Cockpit workload and specifically pilot workload and situational awareness have been identified as key contributors to aircraft safety. The objective of the REACTOR project is to develop and evaluate a suite of technologies in support of reduced cockpit workload and improved situational awareness.
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R-Mode Baltic

The project will setup in the Baltic Sea the world-wide first testbed for the new maritime terrestrial backup system, R-Mode, that utilises two so called maritime signals-of-opportunity at once. This is an important step towards the resilient provision of Positioning, Navigation and Timing (PNT) information on-board a vessel which is requested by maritime organisations. The institute will focus in this project on the R-Mode signal design for ranging transmissions in medium and very high frequency band, development of methods for range and position estimation, integration of R-Mode into a PNT data processing unit and international standardisation of R-Mode. The DLR leads this Flagship project of the EU Strategy for the Baltic Sea Region (EUSBSR). Project partners are national maritime administrations, research institutions and industry from four EU countries.

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ROSANNA

The joint project ROSANNA is based on the results of the research project KOSERNA and the concept study ROSANNA-Konzept and applies them to safety-relevant areas of satellite navigation. Two promising, safety-critical applications were identified that require high-precision and particularly robust navigation: The automotive sector, especially with regard to fully automated and driverless driving, manoeuvring and transport, as well as unmanned aerial vehicles (UAV). Both applications pose special challenges that require fundamental investigations. Promising preliminary studies were successfully carried out within the framework of ROSANNA-Konzept, which are now to be translated into practical designs and suitable demonstrators. The Institute KN is mainly engaged in the challenges resulting from the use of adaptive antennas on UAVs. These include light and compact antenna systems, tracking loops, inclusion of additional sensors as well as interference from the platform and spoofing signals. The project also serves to gain scientific competence in the field of installed antennas as well as the influence of vibration and rotors and their consideration in beamforming, direction-of-arrival estimation and interference suppression.

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ROSANNA-Konzept

The project ROSANNA-concept adopts the core results of the KOSERNA research project and applies them to safety-relevant areas of satellite navigation. Two promising safety-critical applications have been identified that require highly accurate and particularly robust navigation: The automotive sector, especially with regard to fully automated and driverless driving, shunting and transport, as well as unmanned aerial vehicles (UAVs). Both applications pose special challenges that require basic research. These tasks are to be processed and solved conceptually within the framework of ROSANNA-concept. The KN Institute is mainly concerned with the challenges posed by the use of adaptive antennas on UAVs. These include lightweight and compact antenna systems, tracking loops, integration of additional sensors, platform interference and deceptive signals. The project also serves to acquire scientific competence in the field of installed antennas as well as the influence of vibration and rotors and their consideration in beamforming, direction-of-arrival estimation and interference suppression.

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SBDist - Secure and low-latency broadband transmission over short distances

The aim of the project SBDist is to develop a reliable and low latency wireless communication and ranging system between train wagons at short distances less than one meter. For this purpose, a single carrier wideband communication system concept is introduced and implemented using software defined radio, and a mmWave frontend is being built to be used for testing and demonstration.

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SIROM

Space based GNSS measurements become more and more a significant data source for observing the ionosphere. Radio occultation and topside measurements can cover remote areas where ground-based GNSS reference networks are not available. Covering those areas is crucial for the understanding of ionospheric processes with their highly dynamic temporal and spatial changes. We will furthermore investigate and exploit the potential of space-based data for 3D modelling of the Ionosphere in near real-time.

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	Standardization of Optical Satellite Downlinks Optical Data Downlinks from Earth Observation Satellites will in future allow an increase of downlink capacity in orders of magnitude.
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StRout

Within the project StRout, which is funded by the State Mecklenburg-Western Pomerania supported with funds of the European Union, a new method shall be developed to reduce the number of evasion maneuvers carried out by ferries. For that the actual traffic situation should be included into the process of the strategic route planning. The objective is an increased efficiency (lower emission) as well as the reduction of time delays during the passage. The final stage of the project is the experimental development of a prototype, which allows the demonstration of the technological readiness under simulated conditions.

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TechTIDE

In the frame of the Horizon 2020 (H2020) call of the European Commission (EC), the project “Warning and Mitigation Technologies for Travelling Ionospheric Disturbances Effects” (TechTIDE) develops a system for the detection and monitoring and alert for Travelling ionospheric disturbances (TIDs). TIDs constitute a threat for operational systems using HF or transionospheric radio propagation. TIDs can impose disturbances of an amplitude of 20% of the ambient electron density and a Doppler shift of the level of 0.5Hz. Consequently, the direct and timely identification of TIDs is a clear customer’s requirement for the Space Weather segment of the ESA SSA Programme. The objective of this proposal is to address this need with setting up an operational system for the identification and tracking of TIDs, the estimation of their effects in the bottomside and topside ionosphere and for issuing warnings to the users with estimated parameters of TID characteristics. Based on the information released from this warning system, the users, depending on their applications, will develop mitigation procedures.

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TOGS - Transportable Optische Bodenstation

Seit 2012 betreibt das DLR-Institut für Kommunikation und Navigation die Transportable Optische Bodenstation (TOGS). Sie wurde für Kommunikationsexperimente mit Flugzeugen und Satelliten ausgelegt. Herzstück der Station ist das 60 cm Teleskop, welches in einem neuen Fertigungsprozess aus Aluminium gefertigt wurde. Ggü. den sonst üblichen Spiegeln aus Glas ist der TOGS-Spiegel sehr robust und somit gut für die transportable Anwendung geeignet.

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VABENE++ - Verkehrsmanagement bei Großereignissen und Katastrophen

Im Projekt VABENE++ werden leistungsfähige Unterstützungswerkzeuge für Behörden und Organisationen mit Sicherheitsaufgaben (BOS) und Verkehrsbehörden für den Umgang mit Katastrophen und Großveranstaltungen entwickelt. Das Ziel ist, sowohl die notwendige Rettungslogistik als auch die umliegenden Verkehrsströme selbst unter extremen Bedingungen effizient zu leiten und somit Einsatzkräfte schnell an ihren Einsatzort zu bringen. Die Forschungsschwerpunkte liegen dabei u.a. in den Bereichen Simulation und großflächige Verkehrsmodellierung, luftgestütztes Verkehrsmonitoring, verkehrliche Risikobewertung, Datenfusion/Datenmanagement sowie der Weiterentwicklung von Webtechnologien im GIS-Umfeld.

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WW-ATM

Optimierungen im Luftverkehr werden häufig nur lokal begrenzt durchgeführt, z.B. im Flughafennahbereich. Jenseits dieser Gebiete findet dann keine Optimierung und auch keine Analyse der Auswirkungen hinsichtlich der Ökoeffizienz statt. Ergebnis ist ein lokaler Effizienzgewinn, dessen globaler positiver Effekt nicht nachgewiesen werden kann. Das Projekt World Wide Air Traffic Management (WW-ATM) schafft eine Simulationsplattform, auf der weltweite Konzepte auf Machbarkeit, Durchsatz, Robustheit bzw. Störanfälligkeit, Kosten- und Ökoeffizienz optimiert und validiert werden können. Mit Hilfe von Bewertungs- und Optimierungstools können Verkehrsszenarien sowohl strategisch als auch taktisch analysiert und verbessert werden.

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	X2Rail-1 X2Rail-1 is part of the Shift2Rail initiative which is a European rail initiative to seek focused research and innovation (R&I) and market-driven solutions by accelerating the integration of new and advanced technologies into innovative rail product solutions.
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