Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR
A reliable space situational picture emerges only through the interplay of high‑performance sensing, robust data processing, and precise analytical methods. With the growing number of satellites, new mission profiles, and increasing fragmentation in orbit, the demands on systems capable of detecting large numbers of objects, processing the resulting data, and converting it into actionable situational information continue to rise. Based on radar technologies, Fraunhofer FHR develops scalable solutions ranging from individual sensors to networked system architectures, enabling the transition to operational deployment.
Networked Radar Systems and Adaptive Measurement Techniques
A central approach is the development of distributed radar systems with mono‑, bi‑, and multistatic geometries (WMT – Multistatic Space Surveillance). Such architectures increase detection probability, improve accuracy, and enhance system resilience. These concepts are complemented by continuously optimized measurement techniques that dynamically adapt their parameters to observation conditions and mission objectives. This enables both precise tracking of individual objects and efficient monitoring of large object populations.
Further information WMT - Multistatic Space Surveillance
Precise Orbit Determination
The acquired sensor data are integrated into high‑performance processing chains. Radar measurements are combined with additional data sources and transformed into consistent orbital models with quantified uncertainties. Modern data fusion methods ensure reliable integration of heterogeneous information and form the basis for robust predictions. Event‑based evaluation techniques detect orbital changes or fragmentations at an early stage and support targeted follow‑up observations. More information on our space‑based radar observation concepts can be found in our Space Based Radar project.
Validation Through Reference Systems and Simulation
For system development and performance assessment, we employ simulation‑based analyses as well as experimental infrastructures. Our TIRA radar system serves as a reference sensor for calibration, validation, and demonstration. Combined with realistic test scenarios, new technologies can be evaluated under operationally relevant conditions and gradually transitioned into practical applications. With the GESTRA radar system, Fraunhofer FHR has demonstrated that a technically demanding phased‑array space surveillance radar can be realized within a compact footprint. Building on this foundation, we support both the design and implementation of comparable radar systems.
Your Benefit: Reliable Systems for Operational Applications
These capabilities enable solutions that support space agencies, governmental organizations, and industry partners in building and operating modern systems for space situational awareness. Our portfolio spans system studies and architectural concepts, the development of processing chains, and the realization of demonstrators and pilot applications. Together with our partners, Fraunhofer FHR develops future‑ready technologies for the safe and sustainable use of space.