首先，运用WBCT对图像进行多尺度多方向分解，提取出各子频带的统计特征量；
Firstly, the method decomposes the coke micrograph with WBCT for multi-scale and multi-direction, and extracts the statistical features from each sub-band.
最后，提出了一种基于子频带特征提取和二叉树结构支持向量机相结合的电能质量多分类方法。
Finally, a method based on sub-band feature extraction and Support Vector Machine with Binary Tree Architecture (SVM-BTA) is presented for power quality disturbances multi-classification.
将信号样本进行小波包变换，并选择最好基，计算各子频带的平均能量，得到14维特征向量。
Signal sample is analyzed through wavelet packet theory, best base is chose, and the average energy of every sub frequency band is calculated, at last 14 links of characteristic vectors are get.
本文提出了一种基于能量判据和子频带综合的线谱序列提取方法，并利用实测数据进行了比较分析。
A new method to extract line-spectrum series based on energy criterion and sub-band synthesis is presented in this paper, and verification is further investigated with simulated and measured data.
为了扩大故障线路与正常线路的差别，对特征频带内各子频带的频带熵作积处理，得到了复小波包特征频带复合熵线路特征量化准则。
In order to enlarge the difference of fault line and normal line, the complex wavelet pocket band entropy of all sub-frequency bands in feature band is made product.
对人脸图象作正交小波变换，得到它在不同频带上的四个子图象，然后分别提取奇异值特征。
We do orthogonal wavelet transform of a face image, get its four sub images of different frequency bands, then respectively extract their singular value features.
该文提出了一种加天线罩来实现半波振子天线宽频带阻抗匹配的方法。
A method, covering the antenna with an antenna radome, is proposed in the paper to realize the broadband impedance matching of the half-wave dipole antenna.
从不同结构的超宽带平面单极子天线实现频带抑制的方法出发，研究实现频带抑制的基本原理和常用方法。
In this paper, through approach of various band-rejected UWB planar monopole antennas, principles and methods are researched.
针对当前的诊断方法没有充分利用其故障特征频带的问题，提出了基于混沌振子的滚动轴承故障的非线性诊断方法。
The characteristic frequency band is not fully used in some diagnosis methods. A non-linear method based on chaotic oscillator is presented.
宽频带地震数据库是中国岩石圈三维结构数据库的子库之一。
Broadband seismic survey database is one of sub-database under China lithosphere 3d structure database.
子带编码是实现高清晰度电视频带压缩的一种方法。
The subband coding is an efficient method of image compression.
该系统利用大量的子信道使得总的信号速率能够非常接近给定频带的奈奎斯特速率。
The system can make the total signaling rate very close to the Nyquist rate of…
该系统利用大量的子信道使得总的信号速率能够非常接近给定频带的奈奎斯特速率。
The system can make the total signaling rate very close to the Nyquist rate of…
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