搜索结果: 1-14 共查到“光学工程 K-means”相关记录14条 . 查询时间(0.046 秒)
AUTOMATIC EXTRACTION OF ROCK JOINTS FROM LASER SCANNED DATA BY MOVING LEAST SQUARES METHOD AND FUZZY K-MEANS CLUSTERING
terrestrial laser scanning rock joint orientation moving least squares fuzzy K-means clustering
2014/6/5
Recent development of laser scanning device increased the capability of representing rock outcrop in a very high resolution. Accurate 3D point cloud model with rock joint information can help geologis...
Reduction of Back-Reflection induced Power Penalty by means of Coherent Seeding Source with Optical Feedback in a Loop-Back WDM-PON
Networks Optical communication
2015/5/20
We proposed a novel method to implement the coherent seeding source using optical feedback and experimentally demonstrated the feasibility of our seed light under various back reflection levels in a l...
Distributed Characterization of Bending-Induced Birefringence in Spun Fibers by means of P-OFDR
Fiber characterization Fiber measurements
2015/6/10
We report, for the first time, spatially-resolved measurements of bending-induced birefringence in ad hoc drawn single-mode spun fibers. The combined effect of spin rotation and bending birefringence ...
Optical Phase-Modulated Radio-over-Fiber Links with K-means Algorithm for Digital Demodulation of 8PSK Subcarrier Multiplexed Signals
Coherent communications Phase modulation
2015/6/5
A k-means algorithm for phase recovery of three, 50 Mbaud, 8PSK subcarrier multiplexed signals at 5 GHz for optical phase-modulated radio-over-fiber is proposed and experimentally demonstrated after 4...
Studies of polymer surface topography by means of optical profilometry
optical profilometry thin polymeric films
2011/5/9
The optical reflection measurements of polyvinylocarbazole (PVK) and polyazomethine (PPI)
thin films have been done by means of optical profilometry (OP) exhibiting many advantages
in surface and su...
Experimental 2.5 Gbit/s QPSK WDM Coherent Phase Modulated Radio- over-Fibre Link with Digital Demodulation by a K-means Algorithm
QPSK WDM Coherent Phase Modulated Radio- over-Fibre Link Digital Demodulation K-means Algorithm
2015/7/17
Highest reported bit rate of 2.5 Gbit/s for optically phase modulated radio-over-fibre link employing coherent detection is demonstrated. Demodulation of 3x2.5 Gbit/s QPSK modulated WDM channels, is a...
Enhanced Transmission in Long Reach WDM/TDM Passive Optical Networks by Means of Multiple Downstream Cancellation Techniques
Enhanced Transmission Long Reach WDM/TDM Passive Optical Networks Multiple Downstream Cancellation Techniques
2015/7/16
Downstream cancellation based on feed-forward injection and square root equalization in a WDM/TDM-PON based on intensity modulation and wavelength reuse for asymmetrical 2.5G/1.25G transmission over 1...
Correlation between physical properties of superlattices obtained by means of electrochemical deposition method and ion spraying
multilayer systems superlattice ion sputtering
2011/5/10
This paper compares structural and magnetic properties of Cu/Ni and Ni/Cu multilayer systems obtained by means of ion sputtering and electrochemical deposition method. The impact of both thickness of ...
Porous structure of carbon-based materials studied by means of X-ray small angle scattering method
nanoporous carbon porous structure
2011/5/5
The porous structure of carbon-graphite materials: styrene-divinylbenzene copolymer (SBC) and fruit stones (FS) has been studied by means of X-ray small angle scattering method. The angular dependence...
期刊信息
篇名
Synthesis of Boron nitride nanotubes by means of laser ablation at high temperature
语种
英文
撰写或编译
作者
D.P.Yu, etal
第一作者单位
刊物名称
Applied.phys.letters
页面
1998,VOl.72（16）1966
出版日期
1998年
月
日
文章标识(ISSN...
期刊信息
篇名
Synthesis of Nano-scale silicon wires by means of laser ablation at high temperature
语种
英文
撰写或编译
作者
D.P.Yu, etal
第一作者单位
刊物名称
Solid State Communications
页面
1998,Vol.105,403
出版日期
1998年
月
日
文章标识(...
Investigation of white standards by means of bidirectional reflection distribution function and integrating sphere methods
optical scattering white standards color measurements
2011/4/28
The paper deals with investigation of the white Lambertian standards by means of optical methods, i.e., the bidirectional reflection distribution function (BRDF) method and the reflectance study with ...
Analysis of mounting induced strain in semiconductor structures by means of spatially resolved optical modulation techniques
electroreflectance mounting induced strain laser bar
2011/4/27
A wide range of applications of high-power diode lasers is connected with the tendency towards device miniaturization resulting in increased power densities. To manage the thermal load, the chips or a...
pectral modification of supercontinuum light by means of fs-light pulses optimized in a closed learning loop
supercontinuum generation optimal control
2011/4/25
First closed loop optimization experiments on the spectral envelope of white light produced by shaped fs pulses irradiated on a thin (2 mm) sapphire plate are presented. Thereby, the spectral position...