1) low band frequency
低频带频率
2) lower frequency
低频，低频率
3) very-low frequency band
甚低频频带
4) low frequency meter
低频频率表
5) low-frequency meter
低频频率计
6) low frequency sub-band
低频子带
1.
Choosing proper orthogonal wavelet function,the low frequency sub-band was enhanced obviously and the high frequency sub-band was restrained moderately to realize image enhancing via the modulation of information entropy window.
采用信息熵窗小波低频子带分析的方法,目的是对缺乏足够能量的低照度和低对比度图像进行增强。
2.
By analysis on coefficient characteristic after discrete wavelet transform,multiple description coding method based on discrete wavelet transform is proposed,the method generates multiple description bit-stream by restructuring and assigning wavelet coefficients of low frequency sub-band after discrete wavelet transform.
在分析离散小波变换后系数特性的基础上,提出了一种基于离散小波变换的多描述编码方法,它通过将离散小波变换后的低频子带的小波系数进行重组赋值产生多描述码流。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
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