周期信号频谱分析  

Periodic Signal Spectrum Analysis

作　　者：王慧[1] 申志平[1] 程晨[1] 

机构地区：[1]北华航天工业学院电子工程系,河北廊坊065000

出　　处：《科技与创新》2014年第14期139-139,共1页Science and Technology & Innovation

摘　　要：周期信号频谱分析在信号与系统这一学科中占有极其重要的地位。满足狄里赫利条件的非正弦周期函数可以展开为傅里叶级数,基于此事实,以傅里叶变化作为信号分析的理论基础,可以将非正弦周期信号视为一个直流分量与若干个不同频率的正弦分量之和。通过对频谱宽带的理解,研究了矩形脉冲波形的变化对其频谱的影响。The periodic signal spectrum analysis plays an extremely important role in this discipline in signals and systems. Satisfy the conditions of non-sinusoidal periodic Dirichlet functions can be expanded into Fourier series, based on this fact, the theoretical basis of the change as a signal to Fourier analysis can be considered as a non-sinusoidal periodic signals with several DC component sinusoidal components of different frequencies. By understanding the broadband spectrum, the effect of the rectangular pulse waveform changes its spectrum.

关 键 词：周期信号 频谱 矩形脉冲 波形 

分 类 号：TN911.6[电子电信—通信与信息系统]