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Topological Analog Signal Processing

Topological Analog Signal Processing

Researchers at the Swiss Federal Institute of Technology in Lausanne (EPFL) used a Speedgoat Performance real-time target machine and a high-speed analog IO131 module to validate an acoustic topological equation solver experimentally. The setup allowed them to demonstrate the robustness of analog signal processors (ASP) and is an essential step towards a new generation of ultrafast all-optical ASPs. 

Publication on nature.com

Published Papers

Rapid Control Prototyping

Motion Planning and Experimental Validation for an Autonomous Bicycle

Motion Planning and Experimental Validation for an Autonomous Bicycle

This paper introduces a prototype autonomous two-wheeled vehicle developed for experimental verification of motion planning and control algorithms. Finally, it presents and discusses experiments run on the actual vehicle for a particular maneuver. It emphasizes the differences between the trajectories created by different vehicle models.

Publication on ieeexplore.ieee.org

Published Papers

Rapid Control Prototyping

Drag Reduction in Turbulent Boundary Layer via Real-Time Control

Drag Reduction in Turbulent Boundary Layer via Real-Time Control

This paper demonstrates an approach to real-time control of large-scale structures. Real-time controls reduce the streamwise turbulence intensity as well as skin-friction drag.

Publication on sciencedirect.com

Published Papers

Rapid Control Prototyping

Robotic Glove with Integrated Sensing for Intuitive Grasping Assistance

Robotic Glove with Integrated Sensing for Intuitive Grasping Assistance

This paper presents a fully integrated soft robotic glove with multi-articular textile actuators, custom soft sensors, and an intuitive detection controller. The state-machine-based controller uses signals from integrated sensors to detect relative changes in hand-object interactions.

Publication on ieeexplore.ieee.org

Published Papers

Rapid Control Prototyping

Robust Switching Control Method to Achieve Tokamak-Shaped Plasma

Robust Switching Control Method to Achieve Tokamak-Shaped Plasma

A robust switching control method with state vector matching and a novel approach for the feedback system simulation are presented in this paper. First, the plant model reconstructs plasma equilibria from experimental data and calculates plasma shape changes. Then, the control system is discretized and run on a high-speed computer for experiments on a real-time testbed.

Publication on sciencedirect.com

Published Papers

Rapid Control Prototyping

An Open Development Platform for Auditory Real-Time Signal Processing

An Open Development Platform for Auditory Real-Time Signal Processing

This paper presents an auditory real-time processing algorithm platform ("Open Development Platform", ODP) that simplifies developing novel real-time algorithms. ODP leverages MATLAB / Simulink and runs on Speedgoat real-time target machines. The authors show how they developed a fully functional hearing aid for research purposes using ODP.

Publication on sciencedirect.com

Published Papers

An Ankle-Foot Prosthesis Emulator Capable of Modulating Center of Pressure

An Ankle-Foot Prosthesis Emulator Capable of Modulating Center of Pressure

The authors of this paper developed an ankle-foot prosthesis emulator to restore human feet' balancing and push-off characteristics. The proposed emulator system consists of two torque-controlled forefoot digits and a torque-controlled heel digit which meets all design criteria to modulate the center of pressure and ground reaction force effectively.

Publication on ieeexplore.ieee.org

Published Papers

Design and Experimental Characterization of a Hydrostatic Transmission for Upper Limb Exoskeletons

Design and Experimental Characterization of a Hydrostatic Transmission for Upper Limb Exoskeletons

The authors introduce a design of a novel hydrostatic air-liquid torque transmission system for an upper limb exoskeleton. Transmission of fluid on rolling membrane cylinders guarantees leakage-free operation, no backlash, and zero stick friction. By employing a new test bench of the fluid transmission system developed, they conducted experiments to characterize the static and dynamic response for different design parameters.

Publication on ieeexplore.ieee.org

Published Papers

A Balanced Hybrid Active-Passive Actuation Approach for High-Performance Haptics

A Balanced Hybrid Active-Passive Actuation Approach for High-Performance Haptics

This paper describes the design of a high-performance balanced hybrid haptic device. The actuation, design, and control approaches are described and experimentally validated. The results show significant improvements in the stability and rendering range of the device. 

Publication on ieeexplore.ieee.org

Published Papers

Rapid Control Prototyping

A Lightweight Force-Controllable Wearable Arm Based on Magnetorheological-Hydrostatic Actuators

A Lightweight Force-Controllable Wearable Arm Based on Magnetorheological-Hydrostatic Actuators

This paper studies the feasibility of using magnetorheological (MR) clutches coupled to a low-friction hydrostatic transmission.  This combination provides a highly effective yet lightweight, force-controllable supernumerary robotic arm (SRL). Experimental studies conducted on a one-DOF test bench and validated analytically demonstrate a high force bandwidth (>25 Hz) and an excellent ability to control interaction forces even when interacting with an external impedance.

Publication on ieeexplore.ieee.org

Published Papers

Rapid Control Prototyping

An Intelligent Controller based Power Grid Interconnected System for Reliable Operation

An Intelligent Controller based Power Grid Interconnected System for Reliable Operation

The main objective of the research presented is to control the unidirectional boost converter (UBC) by implementing an intelligent controller (IC). The IC continuously captures power conversion based on power output data from wind and solar energy. Then, it injects gate pulses into a power electronic switch based on the data value. The overall design and simulations are performed using MATLAB/SIMULINK.

Publication on ieeexplore.ieee.org

Rapid Control Prototyping

Published Papers

Transient Engine Emulation within a Laboratory Testbed for Aircraft Power Systems

Transient Engine Emulation within a Laboratory Testbed for Aircraft Power Systems

This paper presents an engine emulation system utilized within a hardware-in-the-loop (HIL) test environment for aircraft power systems. It focuses on the software and hardware interfaces that enable the coupling of the rotor dynamics model that provides the critical link between the modeled dynamics of the engine and the measured dynamics of the generator.

Publication on dx.doi.org

Published Papers

Hardware-in-the-Loop

Robust and Reliable Wireless Communication between Smart NOx Sensor and the Speedgoat Engine Control Module

Robust and Reliable Wireless Communication between Smart NOx Sensor and the Speedgoat Engine Control Module

The smart NOx sensor case study investigates the possibility of replacing existing wired CAN bus connections between the smart NOx sensor and the Speedgoat rapid control prototyping system and possible future wireless communication with ECU. In addition, criteria like the transmission in industrial environments, packet loss, RSSI, bit error rate, reliability, and security of the wireless solution are analyzed.

Publication on osuva.uwasa.fi

Published Papers

Rapid Control Prototyping

Rapid Control Prototyping Tool for the Sirius High-Dynamic DCM Control System

Rapid Control Prototyping Tool for the Sirius High-Dynamic DCM Control System

The monochromator is known to be one of the most critical optical elements of a synchrotron beamline. A Simulink implementation running on a Speedgoat Performance real-time target machine identifies and ensures controlling the dynamic behavior of all subcomponents in the prototype. In addition, this approach enables rapid prototyping by allowing a shared environment for system modeling and testing.

Publication on inspirehep.net

Published Papers

Rapid Control Prototyping

Speech Intelligibility with Binaurally linked Hearing Aids

Speech Intelligibility with Binaurally linked Hearing Aids

This study investigates whether using spatial cues benefits speech intelligibility for binaurally linked hearing aids. The control algorithms and signal processing models were tested on a Speedgoat target machine to quickly switch between different versions of the algorithms and test them in real-time.

Publication on proceedings.isaar.eu

Published Papers

Hands-On in Signal Processing Education at Technische Universität Darmstadt

Hands-On in Signal Processing Education at Technische Universität Darmstadt

This paper shares the experiences gained by conducting hands-on learning in signal processing as part of the engineering program at Technische Universität Darmstadt. It describes the variety of laboratories, projects, lectures, and seminars offered to expose students to state-of-the-art research and advanced equipment.

Publication on ieeexplore.ieee.org

Published Papers

Real-Time Loudness Normalization with Combined Cochlear Implant and Hearing Aid Stimulation

Real-Time Loudness Normalization with Combined Cochlear Implant and Hearing Aid Stimulation

This study features an acoustic loudness model running on a Speedgoat real-time system. Researchers tested speech perception and sound localization of bimodal listeners, both in standard loudness growth configuration and modified loudness growth configuration. The subjects have also used linear and compressive hearing aids.  

Publication on ncbi.nlm.nih.gov

Published Papers

Active Magnetic Bearing for Ultra-Precision Flexible Electronics Production System

Active Magnetic Bearing for Ultra-Precision Flexible Electronics Production System

Roll-to-roll printing of flexible electronics on continuous plastic films could enable the production of flexible electronics at high speed and low cost. However, rolling element bearings cannot be deployed because of the precision requirements. Instead, active magnetic bearings (AMB) with optical positioning encoder feedback are used.

Publication on lib.cranfield.ac.uk

Published Papers

Design and Implementation of Bi-Directional DC-DC Converter for Wind Energy System

Design and Implementation of Bi-Directional DC-DC Converter for Wind Energy System

This paper features designing and implementing a bi-directional DC-DC converter with a Speedgoat controller for wind energy conversion systems. An energy storage device is used to compensate for the fluctuations and to maintain a smooth and continuous power flow in all operating modes to load. The complete system is implemented in MATLAB/SIMULINK and verified with hardware.

Publication on scirp.org

Published Papers

Rapid Control Prototyping