Monaural Sound Localization Based on Reflective Structure and Homomorphic Deconvolution
Sensors, 2017 The asymmetric structure around the receiver provides a particular time delay for the specific incoming propagation. This paper designs a monaural sound localization system based on the reflective structure around the microphone.
Yeonseok Park +2 more
doaj +1 more source
Horizontal Plasmonic Ruler Based on the Scattering Far-Field Pattern
Sensors, 2018 A novel method is proposed to detect the horizontal shift of a specific nanoblock relative to a reference nanoblock using surface plasmon modes at nanometer resolution.
Eunso Shin +3 more
doaj +1 more source
Infrared Permittivity of the Biaxial van der Waals Semiconductor α‐MoO3 from Near‐ and Far‐Field Correlative Studies [PDF]
Advances in Materials, 2019 The biaxial van der Waals semiconductor α‐phase molybdenum trioxide (α‐MoO3) has recently received significant attention due to its ability to support highly anisotropic phonon polaritons (PhPs)—infrared (IR) light coupled to lattice vibrations—offering ...
G. Álvarez‐Pérez +15 more
semanticscholar +1 more source
O-FIB: far-field-induced near-field breakdown for direct nanowriting in an atmospheric environment
Light: Science & Applications, 2020 Nanoscale surface texturing, drilling, cutting, and spatial sculpturing, which are essential for applications, including thin-film solar cells, photonic chips, antireflection, wettability, and friction drag reduction, require not only high accuracy in ...
Zhen-ze Li +6 more
semanticscholar +1 more source
Mapping Sound Pressure Levels: A Novel Approach to Determining Near-field and Far-field Regions
Archives of AcousticsThe present study focuses on the spatial characteristics of the sound pressure level (SPL) generated by a circular piston (a circular-shaped acoustic transducer or loudspeaker).
Iliyan Yordanov ILIEV +1 more
doaj +1 more source
Radio Frequency Based Direction Sensing Using Massive MIMO
IEEE Access, 2020 Navigation systems have been widely used in modern applications in which the moving speed and direction estimations are two key steps. Instead of using traditional device-based orientation sensor such as accelerometer and magnetometer to estimate the ...
Xiaolu Zeng +3 more
doaj +1 more source
Far-field excitation of single graphene plasmon cavities with ultracompressed mode volumes [PDF]
Science, 2020 Light under compression The ability to confine light to volumes much smaller than the wavelength produces high electromagnetic fields that can then be exploited in chemical and biological sensing and detection applications.
I. Epstein +13 more
semanticscholar +1 more source
Intelligent Reflecting Surfaces With Spatial Modulation: An Electromagnetic Perspective
IEEE Open Journal of the Communications Society, 2020 Electromagnetic wave control using the concept of a reflecting surface is first studied as a near-field and a far-field problem. Using a secondary source present in a wireless communication environment, such as a backscatter tag, it is possible to ...
Okan Yurduseven +2 more
doaj +1 more source
From signal analysis to clinical practice: the use of peak frequency in mapping and ablation
Frontiers in Cardiovascular MedicineDifferentiating near-field (NF) from far-field (FF) electrograms (EGMs) is essential for accurate mapping and ablation of cardiac arrhythmias. With the advent of high density mapping systems, this distinction has traditionally relied on bipolar voltage ...
Omnia Kamel +5 more
doaj +1 more source
Far-Field Subwavelength Acoustic Imaging by Deep Learning [PDF]
, 2020 Seeing and recognizing an object whose size is much smaller than the illumination wavelength is a challenging task for an observer placed in the far field, due to the diffraction limit.
B. Orazbayev, R. Fleury
semanticscholar +1 more source