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可见光通信混合调制接收机的实验设计 被引量:1
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作者 党甜甜 周倩 +3 位作者 李金泽 漆益红 宋丁 张天 《物理实验》 2021年第11期49-54,共6页
利用非对称裁剪直流偏置光正交频分复用(ADO-OFDM)调制分支信号的时域反对称和周期特性,结合快速傅里叶变换算法,在时域上实现了既有混合调制接收机的低复杂度设计.通过理论分析和仿真实验相结合的教学手段,向学生更好地展示了光通信技... 利用非对称裁剪直流偏置光正交频分复用(ADO-OFDM)调制分支信号的时域反对称和周期特性,结合快速傅里叶变换算法,在时域上实现了既有混合调制接收机的低复杂度设计.通过理论分析和仿真实验相结合的教学手段,向学生更好地展示了光通信技术的完整解调过程,使学生更深入地理解现代信号处理和通信技术的应用,实现了教学和科研的有机结合. 展开更多
关键词 可见光通信 混合调制 计算复杂度 误码率
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Properties of Controllable Soliton Switching in Optical Lattices with Longitudinal Exponential-Asymptotic Modulation
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作者 ZHOU Jun XUE Chun-Hua +1 位作者 qi yi-hong LOU Sen-Yue 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第8期497-500,共4页
The properties of controllable soliton switching in Kerr-type optical lattices with different modulation are investigated theoretically and simulated numerically.The results show that the optical lattices can be avail... The properties of controllable soliton switching in Kerr-type optical lattices with different modulation are investigated theoretically and simulated numerically.The results show that the optical lattices can be available for all- optical soliton switching through utilization for length-scale competition effects.And through longitudinal exponential- asymptotic modulation for the linear refractive index,the properties of soliton switching in the optical lattices can be improved.The number of output channels of soliton switching can be controlled by the parameters such as incident angle,asymptotic rate of longitudinal modulation,guiding parameter and form factor. 展开更多
关键词 nonlinear Schrodinger equation optical lattices soliton switching
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