搜索结果: 1-15 共查到“光学工程 Spatial”相关记录37条 . 查询时间(0.311 秒)
INDOOR SPATIAL DATA CONSTRUCTION FROM TRIANGLE MESH
TriangleMesh Mesh Simplification Solid Indoor Space Indoor Data IndoorGML
2018/11/8
The 3D triangle mesh is widely used to represent indoor space. One of widely used methods of generating 3D triangle mesh data of indoor space is the construction from the point cloud collected using L...
COMBINING HIGH SPATIAL RESOLUTION OPTICAL AND LIDAR DATA FOR OBJECT-BASED IMAGE CLASSIFICATION
High Spatial Resolution Lidar Object-Based Classification Aerial Image Image segmentation
2018/5/14
In order to classify high spatial resolution images more accurately, in this research, a hierarchical rule-based object-based classification framework was developed based on a high-resolution image wi...
ROADM System for Space Division Multiplexing with Spatial Superchannels
ROADM System Space Division Multiplexing Spatial Superchannels
2014/11/6
A two-span SDM system includes the first ROADM supporting spatial superchannels and the first cladding-pumped multicore-EDFA directly spliced to multicore transmission fiber.For 6 ×40 ×128-Gb/s SDM-WD...
Spatial control of surface plasmon polariton excitation at planar metal surface
Surface plasmons Thin films Phase modulation Spatial light modulators
2015/8/6
We illustrate that the surface plasmon polariton (SPP) excitation through the prism coupling method is fundamentally limited by destructive interference of spatial light components. We propose that th...
Performance of parameter-domain and spatial-domain pole-like feature segmentation using single and multiple terrestrial laser scans
Terrestrial Laser Scanning Segmentation Registration Parameter-domain Spatial-domain
2014/7/30
Terrestrial laser scanning (TLS) systems have been established as a leading tool for the acquisition of high density three-dimensional point clouds from physical objects. The collected point clouds by...
Ultra-compact photonic crystal waveguide spatial mode converter and its connection to the optical diode effect
Integrated optics devices Guided waves
2015/8/7
We design an extremely compact photonic crystal waveguide spatial mode converter which converts the fundamental even mode to the higher order odd mode with nearly 100% efficiency. We adapt a pre...
Blur-mask approach (BMA) was developed to simulate the light distribution of locally controlled LED backlight, providing much lower computational complexity which is less than1% of that of conventiona...
A high-dynamic-range liquid crystal display (HDR-LCD) which studies as a dual-panel display can much enhance the contrast ratio of image and reduce the power consumption upon the locally controlled dy...
Impact of ADC Bandwidth and Clipping Ratio on COF-PON Systems Based on Spatial Coding and Subcarrier Multiplexing
Analog-to-digital convertor (ADC) clipping ratio code-division-multiplexing (CDM) passive optical networks (PON) subcarrier multiplexing
2016/12/2
In this paper, we analyze the impact of analog-to digital convertor (ADC) bandwidth and clipping ratio on the performance of a 1 Gb/s x 15 user CDM-over-fiber-PON (COF PON) system based on 16-QAM modu...
Fourier-Transform, Integrated-Optic Spatial-Heterodyne Spectrometer with 1 GHz Resolution on a Silica-Based Planar Waveguide
Waveguides planar Spectroscopy Fourier transforms Integrated optics devices
2015/5/26
We present fabrication details and measurements of a high-resolution planar-waveguide spatial heterodyne spectrometer incorporating 64 asymmetric Mach-Zehnder interferometers.Measurements verify 1 GHz...
Propagation Characteristics of Seven-core Fiber for Spatial and Wavelength Division Multiplexed 10-Gbit/s Channels
Fiber measurements Fiber optics communications
2015/5/26
Propagation characteristics of seven-core fiber were investigated for multiplexed signals of spatial-division and wavelength-division. Effect of chromatic dispersion and inter-core crosstalk were eval...
30Gbit/s 3 × 3 Optical Mode Group Division Multiplexing System with Mode-Selective Spatial Filtering
Fiber optics communication Multiplexing
2015/5/25
A 30Gbit/s 3 × 3 optical Mode Group Division Multiplexing system with Mode-Selective Spatial Filtering (MSSF) using single-mode fiber is demonstrated over 20m graded-index multimode fiber. Crosstalk a...
Long-Range Distributed Strain and Temperature Sensing with 40-cm Spatial Resolution Based on DPP-BOTDA Employing Optical Pre-Amplification and Simplex Coding
Fiber optics sensors Stimulated scattering
2015/5/25
Sub-meter resolution sensing has been achieved employing linear pre-amplification with Simplex-coded pulses employing DPP-BOTDA. Results demonstrate a spatial resolution of ~40 cm over 56km sensing fi...
Data Transmission Using Wavelength-Selective Spatial Routing for Photonic Interconnection Networks
Integrated Optics Optical Switching Devices Optics in Computing Optical
2015/5/22
Wavelength-selective spatial routing is proposed for photonic networks and demonstrated on an electro-optic microring switch. This technique yields greater path diversity in photonic networks, enablin...
2-cm spatial resolution over 40 km realized by bandwidth- division phase-noise-compensated OFDR
spatial resolution bandwidth- division noise-compensated OFDR
2015/5/18
We propose a bandwidth-division phase-noise-compensated optical frequency domain reflectometry technique. Using this approach, we realize a spatial resolution of 2 cm over 40 km in a normal laboratory...