Results 101 to 110 of about 22,466 (253)
Multiple source frequency-modulated continuous-wave optical reflectometry: theory and experiment [PDF]
, 2010 We propose and demonstrate a novel approach to increase the effective bandwidth of a frequencymodulated continuous-wave (FMCW) ranging system. This is achieved by algorithmically stitching together the swept spectra of separate laser sources.
Rakuljic, George +4 more
core +1 more source
Geophysical Prospecting, Volume 73, Issue 4, Page 1154-1170, May 2025.Abstract A thermoacoustics imaging system is investigated in this paper to enhance conventional imaging modalities in geological subsurface situational awareness applications. While thermoacoustics imaging has traditionally been used in biological scenarios like breast cancer detection, this work aims to extend thermoacoustics imaging to geophysical ...
Chang Liu +6 more
wiley +1 more source
Automotive radar – A signalprocessing perspective oncurrent technology andfuture systems [PDF]
, 2018 IEEE Distinguished Microwave LecturerRadar systems are a key technology of modern vehicle safety & comfort systems. Without doubt it will only be the symbiosis of Radar, Lidar and camera-based sensor systems which can enable advanced autonomous driving ...
Gardill, Markus
core
Analysis of sandstone pore space fluid saturation and mineralogy variation via application of monostatic K-band frequency modulated continuous wave radar [PDF]
, 2018 In this paper we present the preliminary findings from a world first investigation into monostatic frequency modulated continuous wave (FMCW) radar analysis of porous sandstones and their fluid content.
Bailey, Chris +6 more
core +2 more sources
Basal Melting and Oceanic Observations Beneath Central Fimbulisen, East Antarctica
Journal of Geophysical Research: Oceans, Volume 130, Issue 3, March 2025.Abstract Basal melting of ice shelves is fundamental to Antarctic ice sheet mass loss, yet direct observations remain sparse. We present the first year‐round melt record (2017–2021) from a phase‐sensitive radar on Fimbulisen, one of the fastest flowing ice shelves in Dronning Maud Land, East Antarctica.
Katrin Lindbäck +6 more
wiley +1 more source
Design of Modular FMCW Radar and Quantization of Its Range Error
Sakarya University Journal of Computer and Information Sciences, 2018 This study presents experimental analysis of range error of modular FMCW (frequency modulated continuous wave) radar operating at C-band. As FMCW utilizes frequency modulation, it can measure both range and speed of targets.
Emre Uzundurukan +2 more
doaj +1 more source
Automotive radar – investigation of mutual interference mechanisms [PDF]
, 2010 In the past mutual interference between automotive radar sensors has not been regarded as a major problem. With an increasing number of such systems, however, this topic is receiving more and more attention.
H.-L. Blöcher, M. Goppelt, W. Menzel
core +1 more source
Advanced Intelligent Systems, Volume 7, Issue 2, February 2025.A radar‐based hand gesture recognition is proposed here to be integrated with 2D‐tactile displays. A multifeature encoder method is used to extract the range‐time‐map and velocity‐time‐map information from the radar in the form of spectrogram images.
Ahmed Hamza +3 more
wiley +1 more source
Integrated Light Sources Based on Micro‐Ring Resonators for Chip‐Based LiDAR
Laser &Photonics Reviews, Volume 19, Issue 2, January 22, 2025.This paper systematically reviews the major developments of micro‐ring‐resonator‐based integrated tunable external cavity lasers and integrated micro‐resonator optical frequency combs for chip‐scale LiDAR in several promising integrated photonics platforms, including SiON, Si, Si3N4, and LiNbO3 platform.
Langyong Huang +13 more
wiley +1 more source
A Time‐Interleaved Swept‐Threshold ADC With Stable Timing for IR‐UWB Medical Radars
IET Circuits, Devices &Systems, Volume 2025, Issue 1, 2025.This paper presents a new method for direct sampling of the backscattered signal in ultrawideband (UWB) impulse radar for vital sign detection. One of the standard methods for direct sampling in UWB radars is the time‐interleaving technique. In these converters, NOT gates (logical inverter gates) and tunable delay cells are typically used to create ...
Parisa Amiri +2 more
wiley +1 more source