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| 自适应信号分解实验装置 | |
| 引用本文： | 张建峡,徐云,张凯洪,孔维政.自适应信号分解实验装置[J].实验技术与管理,2011,28(3):66-68. |
| 作者姓名： | 张建峡 徐云 张凯洪 孔维政 |
| 作者单位： | 1. 贵州大学实验室与设备处,贵州,贵阳,550003 2. 清华大学电机工程与应用电子技术系,北京,100084 3. 国投电力公司,北京,100037 |
| 摘 要： | 用开关电容滤波器和锁相环构成的二阶自适应带通滤波器,运用锁相环原理为开关电容滤波器提供时钟信号,使其带通滤波中心频率将跟随输入信号频率变化,克服了传统滤波器带通中心频率不易改变的缺点。实验结果表明,该滤波器较好地实现了自适应带通滤波的功能,可用于教学和科研中周期信号的分解。 |
| 关 键 词： | 锁相环 开关电容滤波器 自适应带通滤波器 |
The experiment device for adaptive signal decomposition |
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| Zhang Jianxia,Xu Yun,Zhang Kaihong,Kong Weizheng.The experiment device for adaptive signal decomposition[J].Experimental Technology and Management,2011,28(3):66-68. | |
| Authors: | Zhang Jianxia Xu Yun Zhang Kaihong Kong Weizheng |
| Institution: | 1.School of Electrical Engineering,Guizhou University,Guiyang 550003,China;2.Department of Electrical Engineering,Tsinghua University,Beijing 100084,China;3.SDIC Electric Power Co.,Beijing 100037,China) |
| Abstract: | The adaptive second-order band-pass filters is constituted with a switch capacitance filter and phase lock loop constitute,using phase lock loop principle to provide the clock signal to the switch capacitance filter,make center frequency of the band-pass filters follow the input signal frequency variation,overcome traditional band-pass filter to change the shortcomings of center frequency.Experimental results show that the device can realize the function with adaptive tracking input signal frequency,and can be applied in the teaching and scientific research of periodic signal decomposition. |
| Keywords: | phase lock loop swith capacitance filter adaptive band-pass filter |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |