搜索结果: 1-15 共查到“光电子技术 Generation”相关记录88条 . 查询时间(0.112 秒)
AUTOMATIC DTM GENERATION FROM LASER-SCANNING DATA IN RESIDENTIAL HILLY AREA
LIDAR Geodesic dilation image reconstruction
2015/9/28
Airborne laser scanning systems provide high quality 3D point clouds from the earth’s surface. A Digital Surface Model (DSM) is
provided from the LIDAR data after removing the outliers from the point...
comparison of dem generation and combination methods using high resolution optical stereo imagery and interferometric sar data
DEM/DTM High resolution Combination Fusion Accuracy Multisensor Optical SAR
2015/9/1
Digital elevation models (DEM) from satellite data are generated mainly from two types of datasets using completely different methods: photogrammetry for optical stereo images (e.g. SPOT5, IKONOS) and...
3D BUILDING MODEL GENERATION FROM AIRBORNE LASER SCANNER DATA USING 2D GIS DATA AND ORTHOGONAL POINT CLOUD PROJECTIONS
LIDAR point cloud segmentation building model reconstruction automation
2015/8/13
Human operators use an intuitive procedure of rotating laser scanner point clouds into specific projections when trying to understand
the structure of buildings contained in the data. This procedure ...
FACTORS AFFECTING THE QUALITY OF DTM GENERATION IN FORESTED AREAS
Digital Terrain Model DTM airborne laser scanning ALS algorithms quality
2015/8/13
Airborne laser scanning (ALS) has become an established tool for acquiring digital terrain models (DTM) in forested areas. Even
though, there have been several empirical studies on DTM quality with l...
Generation of 1500-tone, 120nm-wide Ultraflat Frequency Comb by Single CW Source
Generation of 1500-tone 120 nm-wide Ultraflat Frequency Comb Single CW Source
2014/11/6
Dense 1500-tone frequency comb is derived from a single CW laser. Sub-2dB flatness was measured over 120 nm, with 40 dB optical signal-to-noise-ratio. The new generator uses regenerative shock formati...
Small-Form-Factor All-InP Integrated Laser Vector Modulator Enables the Generation and Transmission of 256-Gb/s PDM-16QAM Modulation Format
Small-Form-Factor All-InP Integrated Laser Vector Modulator Enables the Generation Transmission of 256-Gb/s PDM-16 QAM Modulation Format
2014/11/6
We demonstrate, using a compact InP-based integrated assembly of a tunable laser and a double-nested Mach-Zehnder modulator, generation of Nyquist-prefiltered QPSK and 16-QAM signals at 32-Gbaud. We t...
THz-Wave Generation from GaP THz Photonic Crystal Waveguides under Difference-Frequency Mixing
THz-Wave Generation Photonic Crystal Waveguide Nonlinear Optical Effect
2013/1/30
GaP terahertz (THz) two-dimensional (2D) photonic crystal (PC) waveguides with line defects were fabricated using inductively-coupled plasma reactive-ion etching (ICP-RIE) in Ar/Cl2 gas chemistries. T...
Effective Soliton Fusion Process at the Advanced Stage of Supercontinuum Generation in Photonic Crystal Fibers
Supercontinuum Generation Temporal Solitons Soliton Fusion Photonic Crystal Fibers
2013/1/30
Soliton fusion is a fascinating and delicate phenomenon that manifests itself in optical fibers in case of interaction between co-propagating solitons with small temporal and wavelengths separation. T...
RADIO-OVER-FIBER (ROF) systems have attracted much interest for potential use in future broadband wireless communications. Essential to ROF systems is the ability to generate and transmit optical radi...
Following the accelerated development of wireless communications, efficient and costeffective methods of generating and transmitting microwave and millimeter-wave signals are increasingly important. T...
Dual Pump Wave Generation from NRZ-ASK Signal Enabling a “Black-Box” Phase Sensitive Amplifier
Fiber optics amplifiers and oscillators Nonlinear optics parametric processes Lasers injection-locked
2015/5/26
We present a phase locking scheme that enables the demonstration of the first black-box dual pump degenerate phase sensitive amplifier for 10 Gbit/s NRZ-ASK signals.
Phase Modulated Optical Millimeter Wave Generation Based on Externally Injected Gain Switched Laser
Fiber optics communications Radio frequency photonics
2015/5/26
A novel, simple, and cost effective set up for generating phase modulated millimeter-waves is experimentally demonstrated by using an externally injected gain switched laser. System performance has be...
Up to 40Gb/s Optically Amplified AMOOFDM for Next Generation PON Networks
Fiber optics amplifiers oscillators Modulation
2015/5/25
We compare the performances of IMDD AMOOFDM transmissions in both amplified and unamplified configurations for long distance PON networks with 1:32 and 1:64 split ratios.Up to 40Gb/s bit rate has been...
Power-Efficient Photonic BPSK Coded Ultrawideband Signal Generation
Fiber optics optical communications Radio frequency photonics
2015/5/22
We experimentally demonstrate a power-efficient BPSK coded ultrawideband(UWB) signal generator. The 2.5 Gb/s BPSK coded signal is achieved through optical switching based on two intensity modulators d...
Beyond 2.5Gb/s Photonic Generation and Wireless Transmission of Different Pulse Modulation Formats for a High Speed Impulse Radio UWB over Fiber System
Fiber optics communications Radio frequency photonics
2015/5/22
We experimentally demonstrate beyond 2.5Gbps photonic generation of different pulse modulation formats for impulse radio ultra-wideband (IR-UWB) over fiber application. IR-UWB transmission over 20km f...