| 引用本文: | 李军,万文军,王越超.一种新型线性二阶滤波器的研究与应用[J].控制理论与应用,2017,34(3):312~320.[点击复制] |
| LI Jun,WAN Wen-Jun,WANG Yue-Chao.Research and application of a new type of linear second-order filter[J].Control Theory and Technology,2017,34(3):312~320.[点击复制] |
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| 一种新型线性二阶滤波器的研究与应用 |
| Research and application of a new type of linear second-order filter |
| 摘要点击 2829 全文点击 2140 投稿时间：2016-08-19 修订日期：2016-11-07 |
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| DOI编号 10.7641/CTA.2017.60627 |
| 2017,34(3):312-320 |
| 中文关键词 二阶滤波器 正弦跟踪器 LC滤波器 点频滤波器 逆模型 |
| 英文关键词 second-order filter sinusoid tracking LC filter single-frequency-pass filter inverse model |
| 基金项目 国家自然科学基金项目(61473183)资助. |
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| 中文摘要 |
| 针对线性二阶滤波器时间滞后的问题, 提出了一种LCR正弦跟踪的变形结构和新型正弦跟踪的新方法. 通过对变形结构深入的理论研究和分析后得出, LCR正弦跟踪器特性的不理想, 是造成二阶滤波器滞后问题的内在原因. 通过正交调幅和正交解调等技术构造出一种新型的正弦跟踪器, 采用新型正弦跟踪器构造出的新型二阶滤波器, 具有滞后时间较小和抗噪声干扰特性较强等优良的线性滤波特性. 文中提出的方法属于一种线性滤波技术, 能够应用在控制理论的信号滤波等方面. 通过数学分析、仿真实验和实际应用等分析了所提出方法的有效性. |
| 英文摘要 |
| Aiming at the problem of time lag of linear second-order filter, a new method for the deformation structure of LCR and a new type of sinusoidal tracking is proposed. Through in-depth theoretical analysis for deformation structure,it is found that the second-order filter’s lag problem is caused by LCR sinusoid tracking filter’s characteristics. A novel sinusoidal tracker is constructed by orthogonal amplitude modulation and demodulation technology. By using this tracker, a novel second-order filter is built, which has strong characteristics with anti-noise and excellent linear filtering. The proposed method is one kind of the technology of linear filters. It can be applied in the signal filtering of classic control theory.The validity of the proposed method is analyzed through mathematical analysis, simulation experiment, and practical application. |
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