1) block overlap of frequency bands
频带混叠
1.
The algorithm of wavelet packet decomposition and reconstruction was improved,and by reordering the coefficients of wavelet packet decomposition,it solved the problem of block overlap of frequency bands caused by down sampling,besides,the principle of wavelet denoising was deeply analyzed.
该算法对小波包分解和重构算法进行了改进,通过对小波包分解系数的重新排序,解决了由于隔点采样而引起的频带混叠问题,并对小波消噪原理进行了深入分析。
2) frequency aliasing
频谱混叠
1.
The research of frequency aliasing of Contourlet transform based on directional filter banks;
基于方向滤波器组的Contourlet变换频谱混叠特性研究
2.
It shows that we can avoid the frequency aliasing by changing the direction of t.
得出了当被测物体的频谱呈现非圆形分布时,可以采用改变投影的光栅条纹的方向消除频谱混叠,达到在不增加条纹密度和图像获取装置的分辨率的情况下减小或消除基频和零频间的混叠。
3) spectrum alias
频谱混叠
1.
The analysis and dispose spectrum alias based in harmonic measurement;
基于谐波检测的频谱混叠分析与处理
4) frequency aliasing
频域混叠
1.
Decrease bandwidth of Morlet wavelet through increasing it’s time-domain wave crests can alleviate frequency aliasing in CWT.
通过增加Morlet小波函数的时域波形波峰数,减小Morlet小波函数的频域带宽,从而减轻采用Morlet小波函数进行连续小波变换时的频域混叠现象。
5) aliasing frequency
混叠频率
6) frequency mixing
频率混叠
1.
Frequency mixing existed in laser heterodyne interferometer is studied.
研究了激光外差干涉仪中存在的频率混叠现象、误差形成机理和变化规律。
补充资料：混头混脑
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参考词条