搜索结果: 1-8 共查到“光电子技术 estimation”相关记录8条 . 查询时间(0.123 秒)
VOXEL-BASED ESTIMATION OF PLANT AREA DENSITY FROM AIRBORNE LASER SCANNER DATA
Canopy structure Three-dimensional (3-D) Flight line Lidar Plant area index Crown volume
2014/6/5
Three-dimensional distribution of plant area density (PAD) was retrieved using airborne laser scanning (ALS) data. The calculation of PAD requires the number of laser-pulses intercepted by plant mater...
Accurate Distance Estimation for VANET Using Nanointegrated Devices
Vehicular Ad-Hoc Networks Positioning Systems Wireless Networks Nanotechnology devices CNT Sensors
2013/1/30
Vehicular Ad-Hoc Networks (VANET) is a research venue that promises for many useful applications. Most of these applications require a precise real-time positioning system for each vehicle. However, p...
Low-Complexity Two-Stage Carrier Phase Estimation for 16-QAM Systems using QPSK Partitioning and Maximum Likelihood Detection
Low-Complexity Two-Stage Carrier Phase Estimation 16-QAM Systems QPSK Partitioning Maximum Likelihood Detection
2015/5/20
A feedforward carrier phase estimation algorithm using a modified QPSK partition approach followed by maximum-likelihood (ML) detection is proposed. Results demonstrate complexity reduction by more th...
Routing and Wavelength Assignment for Transparent Optical Networks With QoT Estimation Inaccuracies
Networks assignment routing algorithms Optical communications
2015/6/5
We show how inaccuracies of Quality of Transmission (QoT) estimations, caused by imperfect models and lack of monitors in transparent optical networks, can be mitigated using a novel routing and wavel...
Simple Filter for Dispersion Estimation via optical VSB filtering
Simple Filter Dispersion Estimation optical VSB filtering
2015/7/15
In this paper, we introduce a simple fiber optical filter for dispersion monitoring using the dispersion-induced electrical phase shift of the received upper and lower sideband signals and present pro...
DGD Estimation from FIR Filter Taps in Presence of Higher Order PMD
DGD Estimation FIR Filter Taps Higher Order PMD
2015/7/31
We estimate the DGD τ ( ω ) over the complete system bandwidth from FIR filter taps in coherent receivers with digital equalization, obtaining accurate DGD values even in presence of higher order PMD...
Joint-Polarization Carrier Phase Estimation for XPM-Limited Coherent Polarization-Multiplexed QPSK transmission with OOK-neighbors
Carrier Phase Estimation XPM-Limited Coherent Polarization-Multiplexed QPSK transmission OOK-neighbors
2015/7/30
We demonstrate joint polarization carrier phase estimation for XPM-limited channels with significant improvements over standard methods, demonstrated on measurements of 43Gb/s NRZ-CP-QPSK with 10.7Gb/...
Improved Nonlinear Tolerance of 112-Gb/s PDM-OFDM in Dispersion-Uncompensated Transmission with Efficient Channel Estimation
Nonlinear Tolerance PDM-OFDM Dispersion-Uncompensated Transmission Efficient Channel Estimation
2015/7/30
We show numerically that the nonlinear tolerance of a 112-Gb/s PDM-OFDM signal, coherently received with a robust and efficient channel estimation method, is substantially improved by fiber dispersion...