Projects - Radio Communications



Air-to-Ground Channel Measurements

Measurement and Characterization of Wave Propagation in Air-to-Ground, Space-to-Ground, and other Airborne Communication Channels in VHF/UHF, L- and S-Band using a Drone-based high-resolution broadband measurement system
Product H2
Product H2

German National Satellite Programme „Heinrich Hertz“

System design and verification for the military payload and ground system components
MIMO Satcom Antenna
MIMO Satcom Antenna

MIMO SATCOM Research Project

Novel bandwidth efficient transmission techniques for SATCOM, channel measurements for FSS multiple-input multiple-output SATCOM systems, Evaluation of a novel MIMO system demonstrator using Eutelsat E7A & E10A
APSK Evaluierung
APSK Evaluierung

Scientific Consultancy for the BAAINBw as Part of the NATO SATCOM Capability Team (CaT)

Technical evaluation analysis of NATO standardization agreements regarding satellite communications, member of the working groups for the technical evaluation and design of new SATCOM waveforms for the STANAG 4622 and STANAG 4606
LTE over Satellite
LTE over Satellite

LTE over Satellite System Demonstrator

Implementation and test of a hybrid satellite-terrestrial LTE communication network for military applications

IT-Security for Satellite Networks

Design and end-to-end performance evaluation of military VPN/IPSec satellite networks, testbed for predistortion and equalization techniques for highly nonlinear multicarrier SATCOM transponders

UHF SATCOM Channel Measurements

Live-measurement campaign to evaluate the mobile UHF satellite communication channel
Stern SatNetz
Stern SatNetz

End-to-End Performance Evaluation of Military VPN/IPSec Satellite Networks with QoS Data Services

Analysis of the QoS implementation of a military communication server for a terrestrial wireless network and integration in a satellite network. End-to-End performance testing with a market leading test software from IXIA.

International Cooperation for Animal Research Using Space (ICARUS)

Initiative to observe global migratory movements of small animals through a satellite system, measurement and characterization of the space-to-ground communication channel
TWTA with Upconverter
TWTA with Upconverter

Testbed for Predistortion and Equalization Techniques for Highly Nonlinear Multicarrier SATCOM Transponders

Design, specification and composition of a satellite testbed with linear and nonlinear distortion including frequency converters, filters and travelling wave tube amplifiers
X-Band Testbed
X-Band Testbed

X-Band TWTA Hardware Testbed for Algorithm Performance Evaluation

Measurement setup for the determination of linear and nonlinear distortions, modelling of the measured parameters and evaluation of model based predistortion and equalization techniques.


Projects - Biomedical Information Technology



Adaptive Interference Cancelation in Abdominal Signals for Fetal Monitoring

Extraction of the fetal electrocardiogram (fECG) from the maternal abdominal signal for fetal health monitoring based on multivariate signal analysis methods. Objectives: Provide a non-invasive method offering both the fetal heart rate and the morphology of the fECG signal; extract additional information about uterine contractions and breathing rhythm while removing power line and other unwanted interferences like the maternal ECG; determine tissue transfer functions and optimal electrode configuration geometry.

Model-Based Event Detection in Motor-Related Biosignals

Precise detection and localization of changes in kinematic (e.g., force, acceleration, displacement) and surface electromyographic (SEMG) signals recorded during human movement. Objectives: Include available a priori information about the underlying electrophysiological and biomechanical processes into the decision; reliably detect onset and offset of voluntary and reflexive movement with focus on the accurate determination of change times; determine and automatically classify muscle activation patterns; provide single-trial detection of reflex responses in SEMG signals.

Long-Term Signal Analysis: Challenges and Perspectives

Project of the Long-Term Signal Analysis (LSA) group of the committee Biosignals of the German Society for Biomedical Engineering within VDE (DGBMT). The availability of new unobtrusive sensors and powerful mobile devices such as smartphones and tablets offers the perspective to access physiologic data virtually anytime and anywhere. To use this potential, novel signal processing strategies are required to deal with issues like large time scales, context adaptation, detection of rare but critical events and managing uncertainty in the monitored signals. Objectives: Specify essential requirements for reliable long-term signal analysis strategies; identify methodological bottlenecks and set innovative impulses for future research.

Wearable System for Assessment of Cervical Spine Posture in Daily Routine

Design and evaluation of an unobtrusive wearable system for the continuous monitoring of cervical spine posture in real-life scenarios. Objectives: Design of a mobile recording system for kinematic signals based upon accelerometers and gyrometers; extraction of flexion/extension, lateral bending and rotation movements, automatically detect poor spinal posture with feedback functionality.

Human Motor Coordination in Multitasking

Interdisciplinary project focussed on multi-tasking strategies in healthy subjects and patients with central brain disorders; tapping paradigm requiring concurrent execution of a periodic motor activity (like rhythmic finger tapping movements) with randomly interspersed discrete actions (like pressing a button in response to a stimulus). Objectives: Investigate basic mechanisms of human motor-coordination and their limitations; assess effects of task modality (e.g. hand and foot tapping) and additional sensory input on motor performance; evaluate potential of tapping as a possible diagnostic tool in schizophrenia and depression.

Simple-Clock Tapping Model

Psychophysiologically inspired approach modelling human tapping behavior by a system of mutually coupled nonlinear oscillators. Objectives: Describe various motor strategies by a single common model structure; develop reliable and unbiased estimators of the internal variables associated with a particular motor pattern; evaluate the effect of random fluctuations in inter-tap intervals and reaction times on state-of-the art data evaluation schemes like Phase Resetting Curves (PRC).

Human Operator Behavior in Closed-Loop Control Systems

Analysis of the human operator behavior in a manual tracking task using either a hand-held joystick or a steering wheel of a car cockpit. Objectives: Determine human operator transfer function employing pseudo-noise deflection signals; reduce cognitive load by restricting feedback information presented to the operator to a psychophysiologically and biomechanically adequate frequency range.

Inhibition of Motor Reactions by Distracting Stimuli

Lab setup imitating flash-bang effects generated by non-lethal effectors (NLE). In combat-like situations requiring a minimal risk of casualties (e.g. hostage-crises) flash-bang stimuli may serve as a noninvasive means to distract the attention of the adversary and to “freeze” his motor behavior for a moment long enough to restrain him. Objective: Systematically evaluate the effect of distracting auditory and visual stimuli on sensorimotor parameters like reaction time. Various time patterns and stimulus locations in the 3-D space around the actor are investigated in order to determine the most effective time-space arrangement of sensory stimulation.