band spectrum analysis

英 [bænd ˈspektrəm əˈnæləsɪs]

美 [bænd ˈspektrəm əˈnæləsɪs]

网络带谱分析

The characteristic frequency band of the fault could be identified by wavelet packet decomposition and its energy spectrum conveniently, at the same time, quantification analysis were performed.
应用小波包分解及其能量谱直观地识别出故障的特征频带，并进行了量化分析。
The amplitude of negative frequency components of multiple analytical band pass filter is zero, which can greatly reduce the demand for character of digital filter, increase the maximum multiple of Zoom analysis and improve the accuracy of Zoom spectrum analysis.
复解析滤波器的负频率部分幅值为零，能够大大降低对数字滤波器特性的要求，提高细化分析的最大倍数和细化谱分析的精度。
The principle of multiple modulation selected band Zoom analysis using multiple analytical band pass filter is: constructing multiple analytical band pass filter shifting frequency making FFT and spectrum analysis.
采用复解析带通滤波器进行选带细化谱分析的原理为：构造复解析带通滤波器对时域信号隔D（细化倍数）点或2D点进行复解析带通滤波移频进行FFT和谱分析。