搜索结果: 1-15 共查到“光学工程 Filtering”相关记录38条 . 查询时间(0.077 秒)
MULTIGRID CELL SHAPE EVALUATION IN DTM FILTERING OF MOBILE LIDAR POINT CLOUDS
Point cloud Mobile LiDAR Digital terrain models Filtering Delaunay triangulation
2018/11/9
The georeferenced information acquisition for large scales digital terrain models generation is usually a rather time-consuming and costly process. The use of point clouds gathered by mobile LiDAR sys...
A VOXEL-BASED FILTERING ALGORITHM FOR MOBILE LIDAR DATA
Mobile LiDAR filtering voxelization upward growing curvature
2018/5/15
This paper presents a stepwise voxel-based filtering algorithm for mobile LiDAR data. In the first step, to improve computational efficiency, mobile LiDAR points, in xy-plane, are first partitioned in...
FILTERING OF AIRBORNE LASER SCANNER DATA BASED ON SEGMENTED POINT CLOUDS
Segmentation Filtering Laser scanning LiDAR
2015/8/13
The extraction of points on the bare Earth from point clouds acquired by airborne laser scanning is the most time consuming and
expensive part in the production of digital elevation models with laser...
Hybrid Access Network Integrated With Wireless Multilevel Vector and Wired Baseband Signals Using Frequency Doubling and No Optical Filtering
EXPERIMENTAL SETUP optical power Wireless Multilevel Vector
2011/11/17
FIBER-TO-THE-x (FTTx) have been widely constructed for high data rate wired services to provide triple-play services including voice, data, and video [1]. On the other hand, radio-over-fiber (RoF) tec...
SOA-based OTDM-DPSK Demultiplexing Assisted by Offset-Filtering
Nonlinear optical signal processing Semiconductor optical amplifiers
2015/5/25
We demonstrated for the first time 80 to 40 Gb/s OTDM-DPSK demultiplexing using a single SOA assisted by offset-filtering. Error free performance is achieved with an average power penalty of 5.5 dB.
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...
Semiconductor Laser White Noise Suppression by Optical Filtering with Ultra-Narrowband FBG
Semiconductor lasers Fiber Bragg gratings
2015/5/21
The white frequency noise of semiconductor lasers is attenuated significantly by optical filtering with an ultra-narrowband fiber Bragg grating. This noise reduction will improve carrier phase estimat...
On an ONU for Full-Duplex 10.5 Gbps/λ with Shared Delay Interferometer for Format Conversion and Chirp Filtering
ONU Full-Duplex 10.5 Gbps/λ Shared Delay Interferometer Format Conversion Chirp Filtering
2015/5/21
Chirped IRZ downstream is used together with a delay interferometer and a RSOA at a low complexity ONU for full-duplex 10.5Gbps transmission on a single wavelength, supported by modulation format conv...
Filtering Tolerance of 108-Gb/s PolMux Quadrature Duobinary Signal on 25-GHz Grid
Filtering Tolerance PolMux Quadrature Duobinary Signa
2015/5/20
We demonstrate the error-free transmission of 108-Gb/s PolMux quadrature duobinary signal in a 25-GHz spaced WDM system and investigate its tolerance to narrow optical filtering.
A Systematic Approach to Investigate the Tolerance of 53.5 GBaud 33%-RZ-DQPSK towards Optical Filtering and Residual Chromatic Dispersion based on Experiments
Systematic Approach Investigate Tolerance 53.5 GBaud 33%-RZ-DQPSK towards Optical Filtering Residual Chromatic Dispersion based Experiments
2015/5/20
We experimentally investigate 107 Gb/s 33%-RZ-DQPSK to explore its tolerance towards chromatic dispersion and narrow-band optical filtering. The results indicate that dispersion tolerance can be incre...
A Systematic Approach to Investigate the Tolerance of 53.5 GBaud 33%-RZ-DQPSK towards Optical Filtering and Residual Chromatic Dispersion based on Experiments
Systematic Approach Investigate Tolerance 53.5 GBaud 33%-RZ-DQPSK towards Optical Filtering Residual Chromatic Dispersion based Experiments
2015/5/20
We experimentally investigate 107 Gb/s 33%-RZ-DQPSK to explore its tolerance towards chromatic dispersion and narrow-band optical filtering. The results indicate that dispersion tolerance can be incre...
A Systematic Approach to Investigate the Tolerance of 53.5 GBaud 33%-RZ-DQPSK towards Optical Filtering and Residual Chromatic Dispersion based on Experiments
Systematic Approach Investigate Tolerance 53.5 GBaud 33%-RZ-DQPSK towards Optical Filtering Residual Chromatic Dispersion based Experiments
2015/5/20
We experimentally investigate 107 Gb/s 33%-RZ-DQPSK to explore its tolerance towards chromatic dispersion and narrow-band optical filtering. The results indicate that dispersion tolerance can be incre...
Volterra Filtering for Nonlinearity Impairment Mitigation in DP-16QAM and DP-QPSK Fiber Optic Communication Systems
P-QPSK Fiber Optic Communication Systems Nonlinearity Impairment Volterra Filtering
2015/5/15
A reduced nonlinear Volterra filter is applied to 14 Gbaud DP-16QAM and 28 Gbaud DP-QPSK systems for nonlinearity mitigation. An increased reach of 500 km and 1200 km,respectively, is achieved compare...
Design of one-dimensional dielectric and magnetic photonic crystal filters with broad omnidirectional filtering band
one-dimensional dielectric and magnetic photonic crystal filter transmission matrix method
2011/5/5
A new kind of one-dimensional (1D) photonic crystal (PC) filter is reported in this paper. This
kind of a filter is a dimerlike heterostructure constructed by two 1D dielectric and magnetic PCs.
Com...
Self-Homodyne 10 Gbit/s PSK Receiver based on Stimulated Brillouin Amplification and Electrical Filtering
Optical communications Optical processing
2015/6/10
We demonstrate the first self-homodyne coherent detection of 10 Gbit/s PSK signals using Brillouin amplification of the optical carrier. Performance close to the ideal homodyne receiver is obtained by...