搜索结果: 1-15 共查到“光信息技术 Equalization”相关记录15条 . 查询时间(0.046 秒)
Reduced-Guard-Interval CO-OFDM with Overlapped Frequency-Domain CD and PMD Equalization
Reduced-Guard-Interval CO-OFDM Overlapped Frequency-Domain CD PMD Equalization
2015/5/25
We propose an algorithm for CO-OFDM receivers to perform overlapped frequency-domain CD and PMD equalization before OFDM symbol demodulation. This approach enables OFDM transmission with a small cycli...
Computationally-Efficient DSP-based MIMO Equalization for OSNR gains in 40Gb/s OFDMA-PON
Computationally-Efficient DSP-based MIMO Equalization OSNR gains 40Gb/s OFDMA-PON
2015/5/25
We present and experimentally verify a novel computationally-efficient MIMO equalization method in 40Gb/s OFDMA-PON with polarization multiplexing and direct detection. A 2.1dB DSP-based OSNR gain is ...
Carrier Recovery and Equalization for Photonic-Wireless Links with Capacities up to 40 Gb/s in 75-110 GHz Band
Coherent communications Radio frequency photonics
2015/5/21
Novel robust digital carrier phase/frequency recovery structure is experimentally demonstrated for single carrier and multi-carrier, up to 40Gb/s, photonic-wireless links in 75-110 GHz band. We show t...
Low Latency Transmission at 40 Gbps by Employing Electronic Pre-equalization Technology
Low Latency Transmission Electronic Pre-equalization Technology
2015/5/21
Dispersion compensation fiber is one of the causes of transmission delay in optical systems. We demonstrate a low-latency model system employing electronic pre-equalization. The pre-equalization techn...
Equalization and Pre-distorted Schemes for Increasing Data Rate in In-door Visible Light Communication System
Equalization Pre-distorted Increasing Data Rate Visible Light Communication System
2015/5/18
We propose and demonstrate using signal pre-distortion and equalization schemes for increasing the data rate of the white-light LED communication system. Bit-error-rate of <10 -10 at 10-Mb/s operation...
Frequency Domain Equalization with Minimum Complexity in Coherent Optical Transmission Systems
Fiber optics links subsystems Optical communications
2015/6/10
For chip-design of a frequency-domain equalizer, a simple procedure to minimize the number of multiplications is shown. Considerations include recent improvements of FFT-algorithms.
Digital Equalization of Ultrafast Data Using Real-time Burst Sampling
Fiber optics links subsystems Radio frequency photonics
2015/6/9
We demonstrate digital equalization of 40Gbps data enabled by use of Real-time Burst Sampling (RBS) with photonic time-stretch A/D converter. Evaluation of a feed-forward equalizer and a decision feed...
Coherent CD Equalization for 111Gbps DP-QPSK with One Sample per Symbol Based on Anti-Aliasing Filtering and MLSE
Fiber optics communications Coherent communications
2015/6/9
W e propose a coherent detection scheme with one sample per symbol. MLSE is used to compensate for ISI introduced by anti aliasing filtering. 50,000 ps/nm of CD is fully compensated with only 1 dB pen...
Pseudo-Newton based Equalization Algorithms for QAM Coherent Optical Systems
Coherent communications Optical communications
2015/6/8
In 112Gbit/s optical coherent transmission context, we propose decision-directed and blind adaptive equalizers using variable step size suitable for 16-QAM. The considered algorithms offer better stea...
Equalization of first and second order PMD in 100 GBit/s PolMux Transmission using Optical Butterfly FIR Filters
Fiber optics communications Polarization-selective devices
2015/6/8
PolMux increases PMD sensitivity compared to single polarization transmission. We investigate the equalization of first and second order PMD in the optical domain and determine the respective remainin...
Semi-blind Nonlinear Equalization in Coherent Multi-Span Transmission System with Inhomogeneous Span Parameters
Fiber optics communications Coherent communications
2015/6/8
Semi-blind sequence is proposed for optimizing the nonlinear equalization parameters from limited prior knowledge of link. Its performance is demonstrated in an extreme case where the fiber type of a ...
Experimental Analyses and Optimization of Equalization Techniques for 60-GHz OFDM Radio-over-Fiber System
Fiber optical communications Fiber optics links subsystems
2015/6/4
We experimentally investigated transmission performance of 16QAM-OFDM signal over 25-km fiber and 5-m air distance using 60GHz ROF technology. It is the first time that the details of optimal equaliza...
Performance Improvement of 43 Gbit/s Apol-RZ-DPSK Transmission by Electronic Equalization
Apol-RZ-DPSK Transmission Electronic Equalization
2015/8/4
The application of electronic distortion equalization (EDE) for Apol-RZ-DPSK has been evaluated experimentally and numerically. EDE extends the DGD tolerance by ~30%, if the polarization will be contr...
All-optical equalization of power transients on four 40 Gbit/s WDM channels using a fiber-based device
All-optical equalization power transients WDM channels fiber-based device
2015/8/3
Simultaneous transient suppression of four transient-impaired 40 Gbit/s RZ-ASK WDM channels is demonstrated.Sensitivity improvements are in excess of 5 dB and transmission penalties are significantly ...
Coherent Optical Transmission with Frequency-domain Equalization
Optical Transmission Frequency-domain Equalization
2015/8/3
We demonstrated 25-Gb/s (21.7-Gb/s after coding) single-carrier (SC) transmission with QPSK format over 240km of SMF (4080ps/nm) by employing frequency-domain equalization (FDE).