High-passfilter (HPF) have a common passive high-passfilter and second-order high-passfilter.
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。
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Based on the design fundamental of digital LDI ladder filter, a digital LDD ladder high-passfilter is designed by using the frequency transformation in this paper.
In medical Doppler ultrasound systems, a high-passfilter is usually employed to remove wall clutter components which may also remove the information of the low velocity blood flow.