文中对所建立的系统进行了相频和幅频特性的理论分析和实验，合理地解释了此系统的迟滞曲线随输入信号频率变化的原因。
The phase-frequency and amplitude-frequency responses of the system were analyzed and experimented, which reasonably explains why the hysteretic curve changes with input signal frequency.
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。
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.
本文导出了多径反馈型六阶有源带通滤波器电压转移函数，计算出了该滤波器幅频、相频理论特性曲线。
In this paper we develop the voltage transfer function of the six order active passband filter with multiple path feedback and calculate the theoretical values for A-F and P-F response.
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