Accelerometer readings can be jerky and noisy. Applying low-pass filtering on the signal allows you to smooth it and get rid of high frequency noise.
加速度传感器数值可能被颠簸和噪音影响。应用低通过滤器在信号上可以是它平滑，并摆脱高频噪音的干扰。
Filtering the high frequency part of the signal and reducing the sampling frequency, which does not produce the aliasing, is called sampling.
从信号中去除高频信息，降低抽样频率而不导致频谱混叠的过程称之为抽取。
By using the high frequency emphasis filtering instead of the high pass filtering, the image enhancement effectiveness is obviously improved.
该方法通过用高频加强滤波代替原算法的高通滤波，使增强效果得到了显著提高。
The signal denoising is a method for filtering the high-frequency noise of the signal and makes the signal more precise.
信号降噪是指滤除信号的高频噪声从而使信号尽量接近真实值，这是信号处理的关键环节。
Si filtering circuits designed this way have better high frequency performance and can preserve low sensitivity properties of passive prototypes.
用该方法设计的SI滤波电路具有较好的高频特性，并能保持无源原型的低灵敏度特点。
We first employed the unsharp masking to adjust the contrast of angiograms, and then removed the consistent component of low frequency in frequency domain by high-pass filtering.
首先采用反锐化滤波器对血管造影图像进行对比度调整，然后通过频域高通滤波去除背景中的一致性成分。
The noise suppression component removes high frequency noise from the original image by hardware filtering, making the image smoother.
噪声抑制滤波部件的作用是采用硬件滤波的方式，去掉原始图像中的高频噪声，使图像变得更加平滑。
Frequency characteristic analysis shows its high quality filtering property.
频率特性分析表明，该估计器具有较好的滤波特性。
Frequency characteristic analysis shows its high quality filtering property.
频率特性分析表明，该估计器具有较好的滤波特性。
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