搜索结果: 1-15 共查到“光信息技术 detection”相关记录29条 . 查询时间(0.084 秒)
2018年SPIE X射线异常检测与成像会议（The SPIE Anomaly Detection and Imaging with X-Rays （ADIX） III）
2018年 SPIE X射线异常检测与成像 会议
2017/10/27
X-ray imaging has its beginning in medical imaging. However, advances in x-ray component technology coupled with the exponential growth in computational capability has fueled the expansion of x-ray im...
GREENHOUSES DETECTION USING AN ARTIFICIAL NEURAL NETWORK WITH A VERY HIGH RESOLUTION SATELLITE IMAGE
Artificial Neural Network Very High Resolution Satellite Image Texture Analysis
2015/8/31
Detecting and locating greenhouses in south-east of Spain is very important for politicians and other persons who may take decisions
about management of natural resources and who must design agricul...
A NEW METHOD FOR VANISHING POINTS DETECTION IN 3D RECONSTRUCTION FROM A SINGLE VIEW
Photogrammetry 3D reconstruction Single-Image Technique Geometry vanishing points estimation
2015/8/7
From a single view that contains a three dimensional scene is possible to obtain substantial information about the object and even its
partial reconstruction. This analysis can provide, in the case ...
Towards 400GBASE 4-lane Solution Using Direct Detection of MultiCAP Signal in 14 GHz Bandwidth per Lane
Towards 400GBASE 4-lane MultiCAP Signal 14 GHz Bandwidth per Lane
2014/11/6
We report on an experimental demonstration of 102 Gbit/s transmission over a 15km single wavelength and polarization fiber link with 14GHz 3dB bandwidth. Novel multi-band CAP signaling allows for a 4-...
High-speed Fading-free Direct Detection for DoubleSideband OFDM Signal via Block-wise Phase Switching
High-speed Fading-free Direct Detection Double Sideband OFDM Signal Block-wise Phase Switching
2014/11/6
We employ phase switching of either main-carrier or subcarriers of two consecutive signal blocks for double-sideband fading-free direct-detection (DD). In so doing, 40-Gb/s DDOOFDM is successfully rec...
First OpenFlow-based Software-Defined -Flow Architecture for Flex-Grid OFDMA Mobile Backhaul over Passive Optical Networks with Filterless Direct Detection ONUs
OpenFlow-based Software-Defined Flex-Grid OFDMA Mobile Backhaul Passive Optical Networks Filterless Direct Detection ONUs
2014/11/6
We demonstrate the first software-defined OpenFlow1.0-based flex-grid -flow architecture enabling 150Mb/s per-cell OFDMA MBH overlays onto bidirectional 10Gb/s PON, without any ONU-side optica...
COMPLEMENTARITY OF SAR POLARIMETRY AND TOMOGRAPHY FOR BUILDING DETECTION AND CHARACTERIZATION
SAR polarimetry tomography object detection segmentation
2014/4/24
In this paper we propose to study the potential of jointly using polarimetric and tomographic SAR data to recognize and localize buildings in complex scenarios. We present extraction methods for both ...
Method for Improving the Lateral Resolution of Near-Infrared (NIR) Single Optods: Application to Subcutaneous Vein Detection and Localization
Reflectance Measurements Photon Migration Optical Diagnosis Fiber Probe Design
2013/1/30
NIR backscattering measurements using single source-detector optical probe (optods) can detect absorption areas within deep tissue layer. However, such optods, are characterized by large separation di...
This investigation demonstrates the generation of OFDM-RoF signal using frequency doubling technique for the first time, to the author’s best knowledge. The 4-Gb/s OFDM signal using 16-QAM format modu...
Trace Gas Detection from Plant Leaves, Flowers and Seeds Using Conventional and Photothermal Light Deflection Spectroscopy
Photothermal Deflection Spectroscopy Deflection Spectroscopy Trace Detection
2013/1/30
Photothermal deflection spectroscopy is a method used indirectly to measure optical absorption of a sample. Different techniques can be employed to measure the amount of deflection, hence evaluate opt...
400 Gb/s optical packet switching node design with coherent detection
optical networks optical communications
2015/5/22
We demonstrate how to realize 400 Gb/s optical packet switching for the first time. The key functions of optical packet generation, label separation, colorless O-OFDM payload detection and wavelength ...
Optimum Signal Constellation Design for Rotationally Symmetric Optical Channel with Coherent Detection
Modulation Coherent communications Optical channel capacity Rotationally symmetric optical channel
2015/5/21
We present an optimum signal-constellation design (OSCD) method to obtain the optimum probabilities and mass points by split-step method. The OSCD increases channel capacity by 1.02bits/channel use af...
1.3 μm all-VCSEL low complexity coherent detection scheme for high bit rate and high splitting ratio PONs
Fiber optics communications Vertical cavity surface emitting lasers Coherent
2015/5/21
Full 1.3 μm VCSEL-based simplified coherent detection receiver is demonstrated at 5 Gbps. Receiver sensitivity of -34 dBm is achieved providing link reach and splitting ratio extension for future pass...
Transmission of 111 Gb/s on a 50 GHz Grid Using Single Polarization, Direct Detection and Digital Subcarrier Multiplexing
Fiber optics and optical communications Modulation Multiplexing
2015/5/20
Digital Subcarrier Multiplexing (DSM) allows simple direct detection of spectrally effi-cient multicarrier signals. We show through simulations that, by using DSM, the quality of DWDM transmission wit...
Unrepeatered Transmission over 300 km of NZDSF Using 8x112-Gb/s Time-Interleaved RZ-PDM-QPSK with Coherent Detection and Forward Raman Pumping
Unrepeatered Transmission Coherent Detection RZ-PDM-QPSK
2015/5/15
We show that time-interleaved RZ-PDM-QPSK and forward Raman pumping can increase the performance of a 112-Gb/s PDM-QPSK coherent unrepeatered transmission system over 300 km of NZDSF by more than 2 dB...