In this paper, a simple method of plotting logarithmic phase frequency response curve for open-loop systems is advanced.
文章给出了绘制开环系统对数相频特性曲线的简便方法。
Design of digital high-pass, band pass, band-reject filter, the filter impulse response described demand as well as the filter amplitude-frequency and phase frequency response curve.
设计数字高通、带通、带阻滤波器，要求描绘滤波器的脉冲响应以及滤波器的幅频和相频响应曲线。
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