white frequency

Considering robustness of watermark, we choice frequency Coefficients of DWT ( Discrete Wavelet Transformation ) to embed white watermark.

出于鲁棒性考虑, 我们对图像进行小波变换,选择在小波域的低频系数中嵌入二值水印.

Next, the theoretical analysis method of code tracking performance in non-white interference environment is presented, which is followed by the discussion on the effects of interference frequency, bandwidth and receiver correlator spacing on code tracking accuracy.

给出了非白色干扰环境中的码跟踪精度理论评估方法，并讨论了干扰频点、干扰带宽及接收机相关器间隔对码跟踪精度的影响。

The frequency of white feather from different genotype of female domestic ducks was variable, of which the domes-tic ducks with the meat-duck kin was higher than that with the egg-laying ducks.

不同基因型家鸭产生白羽半番频率是不同的，含有白羽肉鸭血统家鸭所产生的半番鸭的白羽率高于蛋用型品种，肉鸭血统愈高其F1的白色羽率也愈高；

A Study on Frequency Compensation of Current Mode White LED Driver

电流控制模式白光LED驱动电路的频率补偿研究

In this paper, comparative studies on the memory responses of white mice to earthquake premonitory thunders with a main peak frequency of 200 Hz and to pink noise are given.

本文比较研究了小白鼠对主峰频率200Hz的前兆性轰隆声和对粉红噪声的记忆反应。