Zobrazeno 1 - 10
of 3 582
pro vyhledávání: '"phase-sensitive"'
Publikováno v:
Frontiers in Chemistry, Vol 12 (2024)
Externí odkaz:
https://doaj.org/article/15e350d12a41472f96ab2472ba30182c
Publikováno v:
Photoacoustics, Vol 38, Iss , Pp 100633- (2024)
Quartz tuning fork (QTF)-based techniques of photoacoustic spectroscopy and thermoelastic spectroscopy play a significant role in trace gas sensing due to unique high sensitivity and compactness. However, the stability of both techniques remains plag
Externí odkaz:
https://doaj.org/article/d84f715d088d4e35a86215a8080f405c
Autor:
Matin Pashaian, Sanaz Seyedin
Publikováno v:
IEEE Access, Vol 12, Pp 98567-98583 (2024)
In this paper, we propose a jointly-optimized stacked-two-stage speech enhancement. In the first stage, a convolutional recurrent network (CRN)-based masking is integrated with the signal analysis (fast Fourier transform (FFT)) and resynthesis (inver
Externí odkaz:
https://doaj.org/article/955bf1699414446ab40ccac24fa2df57
Publikováno v:
IEEE Access, Vol 12, Pp 90371-90379 (2024)
This work presents an amplitude extraction method based on eigenvalue decomposition (EVD), which can substitute the role of phase-sensitive demodulation in electrical impedance tomography (EIT) demodulation systems. An m $\times $ m square signal mat
Externí odkaz:
https://doaj.org/article/0e99752f53e14586aa5336547d634a00
Autor:
Qiankun Li, Xiongwei Yang, Huashun Wen, Yameng Li, Qi Xu, Jiali Yang, Pengfei Xu, Huajun Yang
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 3, Pp 1-9 (2024)
An all-optical format conversion (AOFC) scheme for the input 30 Gbit/s rectangular 8-ary quadrature amplitude modulation (8QAM) signal is proposed and numerically investigated based on phase-sensitive amplification (PSA) and nonlinear Mach-Zehnder in
Externí odkaz:
https://doaj.org/article/70b86c31b50b4583b06211632687061c
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 3, Pp 1-7 (2024)
Optical pulse coding phase-sensitive optical time-domain reflectometry ($\Phi$-OTDR) sends a series of pulses into the sensing fiber to enhance signal-to-noise ratio (SNR). And the spatial resolution is determined by the subpulse duration. The curren
Externí odkaz:
https://doaj.org/article/19a57ec41aa44f7e8b34cd5fae738953
Autor:
Shuaiwei Jia, Zhuang Xie, Wen Shao, Xiaotian Han, Yulong Su, Jiacheng Meng, Duorui Gao, Wei Wang, Xiaoping Xie
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 1, Pp 1-12 (2024)
Phase sensitive amplification is indispensable in promoting applications such as all-optical regenerators, quantum communications, all-optical analog-to-digital conversion, and long-distance communications. In this article, we proposed a vector dual-
Externí odkaz:
https://doaj.org/article/c04ce852d7b040b0aa0ca40be3b937bc
Autor:
Jorge Canudo, Pascual Sevillano, Andrea Iranzo, Sacha Kwik, Javier Preciado-Garbayo, Jesús Subías
Publikováno v:
Sensors, Vol 24, Iss 22, p 7388 (2024)
Optimizing the use of existing high-voltage transmission lines demands real-time condition monitoring to ensure structural integrity and continuous service. Operating these lines at the current capacity is limited by safety margins based on worst-cas
Externí odkaz:
https://doaj.org/article/a88c082340d840688388be551e6097a1
Publikováno v:
Frontiers in Ophthalmology, Vol 4 (2024)
In recent years, optoretinography has become an important functional imaging method for the retina, as light-evoked changes in the photoreceptors have been demonstrated for a large number of different OCT systems. Full-field swept-source optical cohe
Externí odkaz:
https://doaj.org/article/509df3b1a82a470f97138e23d0687f8b
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