A5014480240- Terahertz technology and applications
- Superconducting and THz Device Technology
- Microwave and Dielectric Measurement Techniques
- Microwave Engineering and Waveguides
- Microwave Imaging and Scattering Analysis
- Millimeter-Wave Propagation and Modeling
- Antenna Design and Analysis
- Anaerobic Digestion and Biogas Production
- Biofuel production and bioconversion
- Ultrasonics and Acoustic Wave Propagation
- Sensor Technology and Measurement Systems
- Ocular and Laser Science Research
- Photonic and Optical Devices
- Image Processing Techniques and Applications
- Non-Destructive Testing Techniques
- Advanced SAR Imaging Techniques
- Radar Systems and Signal Processing
- Advanced X-ray Imaging Techniques
- Optical measurement and interference techniques
- Advanced Antenna and Metasurface Technologies
- Indoor and Outdoor Localization Technologies
- Acoustic Wave Resonator Technologies
- Antenna Design and Optimization
- Spectroscopy and Laser Applications
- Advanced Electrical Measurement Techniques
Fraunhofer Institute for High Frequency Physics and Radar Techniques
2011-2024
RELX Group (United States)
2020-2023
Deutsches Biomasseforschungszentrum
2015-2021
Koblenz University of Applied Sciences
2006-2010
Rheinmetall (Switzerland)
2008
Hochschule Niederrhein
2006
Internationale Akademie Berlin
1989
For a precise description of the emission situation anaerobic digestion (AD) separately collected organic fraction household waste (bio-waste), only few data are available. The paper presents greenhouse gas (GHG) emissions measured at 12 representative AD plants treating bio-waste. results measurements were used to assess ecological impact bio-waste and describe possible mitigation measures reduce occurring GHG emissions. With respect climate protection, quantitative assessment energy...
We present a hand-guided mobile terahertz imaging platform for non-destructive testing (NDT). The scanner acquires volumetric 3D image data using an integrated FMCW radar module in combination with line scanning optics and position encoder. Consisting of galvanometer mirror aspherical telecentric f-theta lens, the optical system enables B-scans perpendicular to manual motion over width 2 cm. guiding wheel allows precise movement along cracks welds, example, enabling inspection corresponding...
Cameras operating in the visual range of electromagnetic spectrum are central to advanced driver assistance systems (ADAS). Front cameras, analyzing traffic, often located behind windshield detect and classify objects.Thus, area within camera's field view is a part optical system. Simple windshields consist two curved glass surfaces connected by thermoplastic interlayer. Due defects present raw glass, as well those introduced during bending lamination process, will have aberrations. While...
The consequences of food adulteration can be far reaching. In the past, inexpensive adulterants were used to inflate different products, leading severe health issues. Contamination has many causes and physical (plant stems in tea), chemical (melamine infant formula), or biological (bacterial contamination). Employing suitable sensor systems along production process is a requirement for safety. this article, approaches inspection are illustrated, exemplary scenarios outline potential spectrum.
When searching for people who are buried alive, emergency services have an urgent need efficient, technical locating capability. Current technologies inadequate to fulfil the requirements of a live rescue. In this paper, key aspects sensor system enabling location persons presented. The approach uses networked MIMO radar modules with algorithms human localisation based on respiration detection.
A sparse, ultra-wideband, multi-module 1D MIMO array at D-band (110–160 GHz) is proposed for 2D imaging of hot steel slabs during the rolling process in steelworks. In this paper, concept, hardware design, and real-time signal processing will be presented.
This paper presents a wideband D-Band transceiver MMIC in Infineon's 0.13 $\mu$mSiGe BiCMOS technology BIIHFC. The has four channels and is designed for an FMCW MIMO radar application with Time Division Multiplexing. Each channel can either be operated as transmitter or receiver. Measurements show maximum transmitted power of 4. 6dBm harmonic rejection 32.5 dBc at the center frequency ($\approx$133GHz). corresponding 3-dB bandwidth covers range 42.5 GHz from 111.5 to 154 GHz. If receiver,...
Abstract We report on the development of a handheld three-dimensional (3D) terahertz scanning system with an aspherical telecentric 3D-printed f-θ lens using selective laser sintering. The covers broader scan line 50 mm its larger aperture, compared to 20 range in our initial work, which was presented at European Microwave Week 2021. In order evaluate adaptability optomechanical components different sensor units, two integrated frequency-modulated continuous wave radar modules based...
Millimeterwaves offer the capability to look through dielectric material. Wound healing processes often have take place under a cover and especially in case of broken limbs plaster Paris bandages be removed for inspection. Investigations were done evaluate possibility wound monitoring plasters.
A portable multisensor frequency modulated continuous radar (FMCW) networked concept is presented for the localization of persons trapped in debris building collapse scenarios. 2-D algorithm evaluated a field test to demonstrate successful detection respiration micromovements.
Abstract The present work concerns the study of preparation processes when this operation is preceded by a CORONA discharge made on dry raw fabrics. influence in whiteness degree, hydrophility, starch removal and uniformity properties cellulosic material after studied. Combined are widely used order to replace solutions where desizing, alkaline boiling bleaching individual operations, being main interest find optimal conditions achieve oxidative treatments with an uniform more intense...
The following paper describes the development of an autonomous and compact millimeter wave scanning measurement system (SAMMI - Stand Alone Millimeter Imager) which works in W-Band (CW@78GHz). SAMMI <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">®</sup> was developed to demonstrate high potential usability region for material classification[1].
The detection and tracking of UAV's is a critical task for public military security. main are the low flight height small radar cross section (RCS). problems increase in an urban environment with many high buildings, especially when tall buildings block line sight. A new concept distributed sensors was developed to close this gap. To reduce impact shadows canyons, surveillance grid optical necessary which covers complete environment. build up different security sectors monitor all access...
Millimetre wave sensors are capable of measuring the structure and composition as well detecting small variations thereof in a wide range dielectric materials, such plastics, dry goods foodstuffs. To produce an image that modern recognition algorithms can be applied on, resolution, i.e. pixel density, comparable to those optical cameras has realized. In this paper, we present rotating scanner system operates CW mode at 90 GHz allows for high density medium measurement object velocities using...
Nowadays, hot and cold rolling of steel strips is mainly monitored by optical or radiometric measurement systems. In some production stages, however, conventional systems still face challenges due to harsh environmental conditions other influencing factors. To meet these challenges, a prototype system consisting eight radar sensors for thickness in mills being developed. It provides an accuracy the micrometre range optimized mill. After finishing laboratory tests, will be implemented...
Radar systems have been used for over 100 years to measure distances and angular positions accurately. benefit from relatively long wavelengths, which means that most absorption scattering mechanisms do not a relevant influence on the propagation conditions of emitted electromagnetic waves. As result, radar were are primarily measurements under poor environmental conditions. Today, we usually find applications work with waves in meter millimeter wave range. Especially range, atmosphere can...
The characterization of materials is one major task for systems which work e.g. in the field quality or production control. One factor to analyze material volume information permittivity. following paper describes a measurement method determine and gives an overview about system. In addition first results will be shown.
Radar-based sensors have been for a long time an integral part of detection threads over distance, even under harsh environmental conditions. The availability compact radar and the development increasingly cost-effective make technology interesting industrial applications. focus was initially on developments requiring moderate measurement speed, such as level silos. However, offer several advantages, making them suitable whole spectrum metrological tasks. This includes ability to measure...