搜索结果: 1-15 共查到“光学工程 impact”相关记录45条 . 查询时间(0.09 秒)
TRAJECTORY BASED 3D FRAGMENT TRACKING IN HYPERVELOCITY IMPACT EXPERIMENTS
Hypervelocity impact Space debris Fragmentation Particle tracking Trajectory fitting Stereo matching
2018/6/5
Collisions between space debris and satellites in Earth’s orbits are not only catastrophic to the satellite, but also create thousands of new fragments, exacerbating the space debris problem. One chal...
Eccentricity in Images of Circular and Spherical Targets and its Impact to 3D Object Reconstruction
Spherical target circular target sphere eccentricity spatial intersection simulation
2014/7/30
This paper discusses a feature of projective geometry which causes eccentricity in the image measurement of circular and spherical targets. While it is commonly known that flat circular targets can ha...
Analysis of the Impact of P-Ratio on BER, Q-Factor and OSNR of Radio over Fiber (RoF) System
Rof System OSNR Parameter BER Q-Parameter Fiber Dispersion Matlab 7.0
2013/1/30
The impact of p-ratio i.e. ratio of carrier power to total received RF power at control office (CO) on Bit error rate (BER), Q- performance parameter and Optical signal noise ratio (OSNR) of RoF commu...
Impact of ADC Bandwidth and Clipping Ratio on COF-PON Systems Based on Spatial Coding and Subcarrier Multiplexing
Analog-to-digital convertor (ADC) clipping ratio code-division-multiplexing (CDM) passive optical networks (PON) subcarrier multiplexing
2016/12/2
In this paper, we analyze the impact of analog-to digital convertor (ADC) bandwidth and clipping ratio on the performance of a 1 Gb/s x 15 user CDM-over-fiber-PON (COF PON) system based on 16-QAM modu...
Impact of Intra-Channel Fiber Nonlinearity on Reduced- Guard-Interval CO-OFDM Transmission
Coherent communications Fiber optics communications Modulation
2015/5/26
Channel estimation for a reduced-guard-interval (RGI) CO-OFDM system shows a unique dependence on the training symbol design in the presence of intra-channel nonlinearities.Because smaller FFT sizes c...
Impact of the Channel Count on the Nonlinear Tolerance in Coherently-detected POLMUX-QPSK modulation
Coherent communications Fiber optics communications
2015/5/26
GPU-based transmission simulations with different channel counts (1~81) are used to determine the minimum required channel number for correctly simulating fiber nonlinearities that impact 40G/100G CP-...
Impact of Fiber Parameters on Nonlinear Fiber Capacity
Impact Fiber Parameters Nonlinear Fiber Capacity
2015/5/25
We present the impact of varying the fiber loss and nonlinear coefficients and the chromatic dispersion on the nonlinear capacity limit estimates of fibers. The results suggest that a relative change ...
Impact of Crosstalk on MB-OFDM UWB Transmission in Radio over Fiber WDM System
Fiber optics optical communications Radio frequency photonics
2015/5/22
We experimentally investigate the impact of crosstalk on the performance of MB-OFDM UWB signal transmission in RoF WDM system. It is found that OFDM signal’s orthogonalities are almost kept after 20 k...
Impact of chirp on spectral recoil of solitons in a defect-core photonic crystal fiber with two zero-dispersion wavelengths
Pulse propagation temporal solitons Photonic crystal fibers
2015/5/22
Increasing input chirp decelerates (accelerates) the spectral recoiling process across a negative dispersion slope for pulses experiencing normal (anomalous) dispersion. A realistic defect-core photon...
Optical Rogue Waves: Physics and Impact
Pulse propagation temporal solitons Supercontinuum generation
2015/5/22
We review our recent work in the field of optical rogue wave physics and applications.Beginning from a brief survey of the well-known instabilities in optical fiber supercontinuum generation, we trace...
Experimental Study on the Impact of Regenerator Placement Strategies when Dynamically Provisioning in Translucent GMPLS WSON Networks
Regenerator Placement Strategies Dynamically Provisioning Translucent GMPLS WSON Network
2015/5/21
The impact of the regenerator placement strategies when dynamically provisioning connections in translucent WSON is studied. The evaluation is experimentally conducted in the ADRENALINE testbed in ter...
Impact of alfa-factor on SOA Dynamic Range for 20 GBd BPSK, QPSK and 16-QAM Signals
Impact of alfa-factor SOA Dynamic Range 20 GBd BPSK QPSK 16-QAM Signals
2015/5/20
Impact of SOA α-factor on dynamic range limitation decreases for higher-order modulation formats leading to undistinguishable performances of bulk and QD SOAs. Results are supported by experiments at ...
Impact of transparent network constraints on capacity gain of elastic channel spacing
network constraints channel spacing capacity gain
2015/5/15
We compare fixed-grid network architectures with variable-spacing OFDM based solutions. We show that capacity gains can reach up to 50% but are strongly affected by physical and topological constraint...
Impact of RF Noise on Transmission Performance of Multiband OFDM UWB over Fiber Systems
RF Noise Multiband OFDM UWB over Fiber Systems Transmission Performance
2015/5/15
We investigate the performance of multiband OFDM ultra wideband (UWB) signal over fiber system considering the impact of RF noise. A compensation technique is proposed to reduce RF noise impact.
The Impact of the Combined 8-QAM and QPSK Subcarrier Modulation for Coherent Optical OFDM
8-QAM QPSK Subcarrier Modulation OFDM
2015/5/15
We investigated the optimized signal condition of the combined 8-QAM and QPSK subcarrier modulation for optical OFDM. The performance improvement was confirmed by WDM transmission experiments with the...