Results 31 to 40 of about 8,936,159 (237)
Feasibility study of SOA-based noise suppression for spectral amplitude coded OCDMA [PDF]
, 2007 We investigate the benefits of employing a saturated SOA to reduce optical noise in an incoherent light OCDMA system. In the context of spectrum-slicing, SOA-based noise suppression has shown significant potential for enhancing the signal quality of ...
Horak, P. +9 more
core +2 more sources
Dizhen xuebao, 2019 利用中国地震台网880个宽频带地震台站2014年1月至2015年12月的垂直分量连续波形记录，通过计算每个台站的噪声功率谱密度和概率密度函数，对中国大陆地区的台基噪声水平进行了初步分析。结果表明：中国大陆的噪声水平在不同频带呈现不同的分区特性，其中高频带（0.1—1 s）噪声水平在西部和北部较低，而在中东部地区较高，京津冀和东南沿海地区最高；城市噪声水平高于人口稀少地区，表明高频带噪声与交通、工业等人文活动强度具有较高的相关性；在盆地及其边缘地区，高频带噪声水平高于周边山区，可能与沉积层的放大效应有关 ...
Fang Wang +4 more
doaj +1 more source
Ambient seismic noise in Cuba: analysis of broadband seismic stations in the Cuban Seismic Network
Dyna, 2022 This paper analyses seismic noise from broadband seismic stations within the Cuban National Seismic Service, focusing on location sites, soil or rock quality at installation sites and the impact of various factors on the noise signature of these seismic
Viana Poveda Brossard +1 more
doaj +1 more source
Speech Enhancement Based On The Structure Of Noise Power Spectral Density
, 2010 Publication in the conference proceedings of EUSIPCO, Aalborg, Denmark ...
Chengshi Zheng +3 more
openaire +3 more sources
Spectral probability density as a tool for ambient noise analysis [PDF]
, 2013 This paper presents the empirical probability density of the power spectral density as a tool to assess the field performance of passive acoustic monitoring systems and the statistical distribution of underwater noise levels across the frequency spectrum.
Pirotta, Enrico +11 more
core +1 more source
Noise Performance of Heterojunction DDR MITATT Devices Based on at W-Band
Active and Passive Electronic Components, 2013 Noise performance of different structures of anisotype heterojunction double-drift region (DDR) mixed tunneling and avalanche transit time (MITATT) devices has been studied.
Suranjana Banerjee +2 more
doaj +1 more source
New Lidar Technique to Eliminate Noise Floor from Spectra: A Demonstration using Antarctic Observations and Modeling [PDF]
EPJ Web of ConferencesNoise in lidar data greatly complicates the derivation of crucial second-order parameters (such as atmospheric wave energies, fluxes, and spectra), especially when the signal-to-noise ratio is low, leaving a bias in the derived parameters.
Jandreau Jackson, Chu Xinzhao
doaj +1 more source
Enhancing the quality of communication of cellular networks using big data applications
Journal of Big Data, 2021 Both software-defined networking and big data have gained approval and preferences from both industry and academia. These two important realms have conventionally been addressed independently in wireless cellular networks.
Mozamel Musa Saeed, Mohammed Alsharidah
doaj +1 more source
Robust Dual-Channel Noise Power Spectral Density Estimation
, 2011 Publication in the conference proceedings of EUSIPCO, Barcelona, Spain ...
Marco Jeub +4 more
openaire +2 more sources
Measured noise power spectral density.
, 2014 This figure shows the measured noise power spectral density with the programmable band-pass filter programmed with the wide pass-band.
Francois Windels (5651449) +6 more
core +1 more source