ALT2000 中显示的该白噪声电平为噪声密度(Noise Density),就是该待测电缆和待测设备的噪声免疫力. Noise Immunity 并没有定义可接受的电平值;所需的电平值取决于线路两端连着的设备的要求...
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carrier-to-noise-density ratio 载波噪音密度比
Thermal noise density 热噪声密度
V Noise Density 电压噪声密度
spectral-noise density 频谱噪声密度
noise density research 噪声谱分析
noise density estimation 噪声强度估计
Noise density distribution 声级分布
prediction of noise density 声环境预测
noise spectral power density 噪声功率频谱密度
In order to improve the performance of median filter and enhance adaptability for different intensity pepper-salt noise, a median filter based on noise density estimation is proposed.
为了提高中值滤波器的滤波性能和适应不同强度的椒盐噪声，提出了基于噪声强度估计的中值滤除算法。
The density of the streets, the noise and the rush of people, astonished her.
密集的街道和拥挤嘈杂的人群让她惊奇。
The median filtering is a common method in image processing, but it is limited when it faces the swash noise of space high density, because it depends on the fixed Windows and the data points.
中值滤波是图像处理中比较常用的滤波方法，但是它对窗口和数据点的依赖使它在处理空间密度较大的冲激噪声时受到限制。
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