搜索结果: 1-15 共查到“光学工程 Investigation”相关记录47条 . 查询时间(0.093 秒)
A PRELIMINARY INVESTIGATION ON COMPARISON AND TRANSFORMATION OF SENTINEL-2 MSI AND LANDSAT 8 OLI
Sentinel-2 Landsat Spectral response function (SRF) Cross-calibration Transformation Consistency Uncertainty
2018/5/17
A PRELIMINARY INVESTIGATION ON COMPARISON AND TRANSFORMATION OF SENTINEL-2 MSI AND LANDSAT 8 OLI Timely and accurate earth observation with short revisit interval is usually necessary, especially for ...
INVESTIGATION OF GEOMETRIC PERFORMANCE OF AN INDOOR MOBILE MAPPING SYSTEM
Mobile Laser Scanning Evaluation Viametris iMS3D Point Cloud Indoor Modeling
2018/6/4
Up-to-date and reliable 3D information of indoor environments is a prerequisite for many location- based services. One possibility to capture the necessary 3D data is to make use of Mobile Mapping Sys...
The so-called symmetric H Hs state has been reported to have submillisecond response times, which results from the symmetric profile of the liquid crystal director; however, no direct evidence has b...
Theoretical investigation of polarization-insensitive data format conversion of RZ-OOK to RZ-BPSK in a nonlinear birefringent fiber
polarization insensitive date birefringent Theoretical
2011/11/17
Compared with traditional RZ-OOK, RZ differential phase-shift keying (RZ-DPSK) requires about 3-dB lower optical signal-to-noise ratio (OSNR) to achieve the same bit-error rate (BER), but a more compl...
Investigation of Laser Induced Inhibition and Simulation in Biological Samples
Photobiology Inhibition Stimulation Absorption Laser Therapy
2013/1/30
In this research, some experimental measurements have been carried out to study the biological effects induced by laser irradiation on bacterial samples prepared by different ways and at different con...
Performance Investigation of Polarization-Multiplexed 16-QAM using All-Optical OFDM Transmission and Digital Coherent Detection
Performance Investigation Polarization-Multiplexed All-Optical OFDM Transmission Digital Coherent Detection
2015/5/20
We generated a 500-Gb/s AO-OFDM signal with DP-16QAM modulating each subcarrier and detected the signal using coherent detection. We investigated the effects of DSP oversampling and receiver bandwidth...
Investigation of the Optical Properties of CdBr2
Optical Properties, CdBr2, WIEN2k, FP-LAPW, DFT, GGA
2013/1/30
The optical properties of CdBr2 were studied by first principle using the density functional theory. The dielectric functions and optical constants are calculated using the full potential-linearized a...
Experimental Investigation of Wide Bandwidth Single and Dual Pump non-Degenerate Phase Sensitive Amplifiers
Fiber optics amplifiers oscillators Nonlinear optics parametric processes
2015/6/10
We demonstrate non-degenerate phase sensitive amplification of a DPSK data signal in both single and double pumped parametric configurations, achieving uniform phase sensitive gain and attenuation ove...
PDM-OFDM for upgrade scenarios:An investigation of OFDM-induced XPM on 42.8-Gb/s DPSK over SSMF and LEAF
Optical communications Nonlinear optics fibers
2015/6/9
We investigate the nonlinear tolerance of 42.8-Gb/s DPSK with PDM-OFDM neighbors. It is found that the XPM penalty scales with the OFDM-bandwidth and that for data rates up to 40-Gb/s delta powers are...
Investigation of Spectral Efficient Modulation Formats for 400Gbit/s/port Optical Packet Switched System
Switching Packet Optical communications
2015/6/8
We investigate the performance of NRZ-OOK, NRZ-DPSK, NRZ-DQPSK, NRZ-8PSK and NRZ-16-QAM modulation and their influence to an optical packet switched systems (OPS) performance.The aim was to demonstrat...
Investigation of the Impact of Ultra-Narrow Carrier Spacing on the Transmission of a 10-Carrier 1Tb/s Superchannel
Coherent communications Fiber optics communications
2015/6/8
We investigate the impact of ultra-narrow carrier spacing on the transmission of a 1Tb/s superchannel comprising 10x100Gb/s PM-QPSK carriers. We demonstrate 2200km over installed SMF fibre with a carr...
Experimental investigation of PDM-QAM16 transmission at 112 Gbit/s over 2400 km
Fiber optics communications Phase modulation
2015/6/5
We investigate the efficacy of nonlinearity compensation for single-channel 14Gbaud PDM-QAM16 over an uncompensated SMF link without Raman amplification. Nonlinear compensation increased the maximum r...
Experimental investigation of the quality of transmission in transparent mesh networks with mixed fiber types
Fiber optics communications Fiber optics links subsystems
2015/6/4
We experimentally investigate the quality of transmission in mesh networks relying on various fiber types. We show that the quality of transmission can be evaluated accurately using the weighted nonli...
Multiwavelength micropulse lidar for atmospheric aerosol investigation
micropulse lidar atmospheric aerosol optical teledetection
2011/5/9
Multiwavelength micropulse lidar (MML) designed for continuous atmospheric sounding is
presented. In its optical emitter, a diode pumped pulsed Nd:YAG laser is used. The laser generates
three wavele...
Humidity-Induced Spectral Shift in a Cross-Dispersion Echelle Spectrometer and Its Theoretical Investigation
Emission spectrometry Position shift of a spectral line Spectral-shift equation
2011/4/28
The relationship between ambient relative humidity H and the position shift of a spectral line was investigated both experimentally and theoretically. An echelle-based ICP emission spectrometer equip...