欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
介绍了基于XI LI NX FPGA的1Gb/s光OFDM（O-OFDM）发送端信号处理的整体设计,对传输信号的星座映射及FFT进行了研究,重点分析了不同量化比特数时IFFT/FFT的误差矢量幅度（EVM）,提出了使用不同量化比特对信号进行适当放大而提高系统的IFFT-FFT转换精度的方法。实验验证了OFDM信号I FFT-FFT变换后随量化比特数的增加,EVM值不断减少,相应的星座图更收敛。
英文摘要：
The letter introduce the integrated design of signal processing in a 1Gb/s optical orthogonal frequency division multiplexing（O-OFDM） transmitter based on XILINX FPGA.The constellation mapping and FFT were deeply investigated in the experiment and raised an IFFT/FFT algorithm with improved operational precision.The experimental results gave the error vector magnitude（EVM） of IFFT/FFT with different quantification bits.And the EVM value of OFDM signal through IFFT-FFT is declining with the quantization of the increase in the number of bits and the related constellation get a better convergence.
同期刊论文项目
同项目期刊论文
Full-duplex radio-over-fiber system with quadrature-amplitude- modulation photonically generated ort
Reducing the Peak-to-Average Power Ratio With Companding Transform Coding in 60 GHz OFDM-ROF Systems
Hadamard Transform Combined With Companding Transform Technique for PAPR Reduction in an Optical Dir
Direct-detection Optical Orthogonal Frequency Division Multiplexing System with New Training Sequenc
Factors affecting the performance of a multi-tone carrier source based re-circulating frequency shif
Analysis of the stability and optimizing operation of the single-side-band modulator based on re-cir
Low-cost 60-GHz radio-over-fiber architecture compatible with wavelength-division-multiplexing passi
Generation of 50 Stable Frequency-Locked Optical Carriers for Tb/s Multicarrier Optical Transmission
Reduction of frequency fading and imperfect frequency response with pre-emphasis technique in OFDM-R
Impairment Mitigation for a 60 GHz OFDM Radio-Over-Fiber System Through an Adaptive Modulation Techn
Flipped-exponential Nyquist pulse technique to optimize the PAPR in optical direct detection OFDM sy
Polarization insensitive all-optical up-conversion for ROF systems based on parallel pump FWM in a S
Polarization Insensitive Wavelength Conversion Based on Orthogonal Pump Four-Wave Mixing for Polariz
Theoretical and experimental study on generation of stable and high-quality multi-carrier source bas
期刊信息
位置：