1) periodic zone
周期带
2) Periodic band gap
禁带周期
3) intraperiod band
内周期带
4) half-period zones
半周期带
5) periodical narrow-band interference
周期窄带干扰
1.
Focused on several kinds of interferences in the partial discharge(PD) signals of transformer,wavelet packet based method is proposed to suppress the white noise;the digital trap filter is designed to suppress the periodical narrow-band interference.
针对电力变压器在线监测的局放信号中包含各种干扰的问题,提出使用小波包的方法去除局放信号中的白噪声干扰,使用数字陷波滤波器去除局放信号中的周期窄带干扰,并用MATLAB 7。
6) periodic narrowband interference
周期性窄带干扰
1.
As periodic narrowband interference is inevitable in the gas insulated switchgear (GIS) partial discharge (PD) ultra-high-frequency (UHF) detecting system, such interference should be suppressed during field detection.
根据PD信号与周期性窄带干扰小波变换后的不同特点,剖析了抑制周期性窄带干扰的常用方法--小波系数直接置零法的局限性,提出了可以用于抑制周期性窄带干扰的有效小波系数(EWC)阈值法,并以所构造的db4复小波对仿真信号与实测GIS特高频PD信号进行了对比去噪研究。
补充资料：宽禁带半导体(见半导体的能带结构)
宽禁带半导体(见半导体的能带结构)
wide gap semiconductor
习一’平叼能带结构。‘J~正J“、二二，，Conauctor见半
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条