摘要
针对中压配电线信道特性,提出了一种基于分数阶Fourier变换(FRFT)的通信方法。以线性调频信号(chirp)作为调制信号,利用线性调频信号在分数阶傅里叶变换域的能量聚焦特性,提高系统的抗噪声干扰和频率选择性衰减的能力。建立了系统的仿真模型,仿真结果证明了方法的可行性。
The characteristic of channel in middle-voltage power line is introduced, a method based on fractional fourier transform for communication is proposed, chirp signal is used for modulation. The energy of chirp signal will be collected effectively when the fourier order is suitable, therefore, the capacity of the system＇ s anti-noisy disturbance is improved and frequency selective attenuation is also solved. The simulation results verify the feasibility of the plan.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2008年第4期93-96,共4页
Journal of North China Electric Power University：Natural Science Edition
关键词
配电线载波通信
分数阶FOURIER变换
线性调频信号
频率选择性衰落
middle-voltage distribution line carrier communication
fractional fouler transform
chirp signalfrequency selective attenuation
作者简介
尚秋峰（1968-），女，教授，研究方向为现代传感与测量技术，实时信号与信息处理，集成电路设计与应用。
