1 苏州大学 电子信息学院, 江苏 苏州 215006
2 中国科学院大学 电子电气与通信工程学院,北京 101408
3 武汉邮电科学研究院有限公司 光纤通信技术和网络国家重点实验室,武汉 430074
为了提升可见光通信(VLC)定位系统的频谱和功率利用率, 文章提出了一种基于非对称限幅和直流偏置的光正交频分复用(ADO-OFDM)的VLC定位集成系统。该通信定位集成系统具有比基于非对称限幅的光正交频分复用(ACO-OFDM)的VLC定位集成系统更高的频谱利用率和比基于加直流偏置的光正交频分复用(DCO-OFDM)的VLC定位集成系统更高的功率利用率。同时, 文章还提出了一种差分修正定位算法, 所提算法较于传统的三边定位算法其具有更高的定位精度。
可见光通信 通信定位集成系统 非对称限幅和直流偏置的光正交频分复用系统 差分修正定位算法 VLC integrated system of communication and locations ADO-OFDM differential correction location algorithm
Author Affiliations
Abstract
1 Institute of Electronic Information, Soochow University, Suzhou 215006, China
2 Department of Electrical Engineering, Pennsylvania State University 111 Electrical Engineering East, University Park, PA 16802, USA
Specified ultra-short pulse waveforms could be synthesized with high-resolution zero-dispersion pulse shaping system. The system and parameters are analyzed and discussed. The pulse shaping system with optimized parameters could resolve the frequency components of ultra-broad bandwidth pulse and prevent the spatial shaping of individual frequency components. The specified waveforms, Meyer wavelet and square root raised cosine pulses, are generated with programmable amplitude and phase masks.
超短脉冲 脉冲整形 幅度掩模 相位掩模 320.5540 Pulse shaping 300.6530 Spectroscopy, ultrafast 060.2605 Free-space optical communication Chinese Optics Letters
2011, 9(3): 033201
