一种新型线性二阶滤波器的研究与应用

发布时间：2018-06-19 22:34

  本文选题：二阶滤波器 + 正弦跟踪器　； 参考：《控制理论与应用》2017年03期

【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.
[Abstract]:In order to solve the problem of time delay of linear second-order filter, a new method of LCR sinusoidal tracking is proposed in this paper. Based on the theoretical study and analysis of the deformed structure, it is concluded that the characteristic of the LCR sinusoidal tracker is not ideal, which is the internal cause of the second order filter delay problem. A new sinusoidal tracker is constructed by means of quadrature amplitude modulation and quadrature demodulation, and a new second-order filter is constructed by using a new sinusoidal tracker. It has good linear filtering characteristics, such as small lag time and strong anti-noise interference. The proposed method belongs to a linear filtering technique and can be applied to signal filtering in control theory. The effectiveness of the proposed method is analyzed by mathematical analysis, simulation experiment and practical application.
【作者单位】： 广东电网有限责任公司电力科学研究院;
【基金】：国家自然科学基金项目(61473183)资助~~
【分类号】：TN713
，

本文编号：2041610