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1·High-pass filter (HPF) have a common passive high-pass filter and second-order high-pass filter.

高通滤波器（HPF）常见的有无源高通滤波器和二阶高通滤波器。

2·Based on the design fundamental of digital LDI ladder filter, a digital LDD ladder high-pass filter is designed by using the frequency transformation in this paper.

本文利用数字梯形滤波器的设计原理，以离散微分器作为积木块，利用频率变换方法，设计出数字LDD梯形高通滤波器。

3·The code of the image filter processing, the code shows the three filter matrix, including the smoothing (low pass filter), image edge detection (high-pass filter) and so on.

该代码实现了图像的滤波处理，这段代码给出了三种滤波矩阵，包括图像平滑(低通滤波器)、图像边缘提取(高通滤波器)等。

4·An example of the design procedure of the third order digital LDD ladder high-pass filter with equal magnitude response is detailed. A computer simulation of the example is given.

本文以一个三阶等波动ldd梯形高通滤波器为例说明具体的设计过程，并对该滤波器进行计算机模拟。

5·In medical Doppler ultrasound systems, a high-pass filter is usually employed to remove wall clutter components which may also remove the information of the low velocity blood flow.

医学超声多普勒系统的高通滤波器在消除血管壁搏动带来的回波干扰时，也滤除了低速血流信息。

6·The proposed architecture adopt recursive pyramid algorithm(RPA)instead of the classical pyramid algorithm(PA), only one low-pass filter and high-pass filter are required to compute all levels.

该结构采用了递归金字塔算法（RPA）取代传统的PA算法。 只用一组滤波器即可完成所有级别的小波运算。

7·The controls customize a high pass filter, which attenuates frequencies below a given frequency.

自定义的控制高通滤波器，频率衰减低于特定的频率。

8·A current mode high pass filter based on a differential circuit having simple and leap frog structure with excellent performance is proposed.

给出了一种结构简单、性能优良的微分电路，并提出了用该电路实现的电流模式跳耦结构高通滤波器。

9·Removing high frequency noise pulses by a low-pass filter and Schmitt-trigger.

用一低通滤波器和施密特触发器排除高频噪声脉冲。

10·A uhf sensor is designed and fabricated, which mostly consists of antenna, uhf amplifier, high pass filter, and broadband wave detector.

通过与大华无线电厂合作，研制了超高频传感器，其主要由天线、超高频放大器、高通滤波器、宽带检波器等组成。