A New Signal Detection and Estimation Method by Using Duffing System

doi:10.3969/j.issn.0372-2112.2016.06.028

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A New Signal Detection and Estimation Method by Using Duffing System

更新时间：2025-07-02

- A New Signal Detection and Estimation Method by Using Duffing System
- Acta Electronica Sinica Vol. 44, Issue 6, Pages: 1450-1457(2016)
- 作者机构：
  
  哈尔滨电工仪表研究所,黑龙江,哈尔滨,150028
- 作者简介：
- 基金信息：
  
  Reformed Research Institute Innovation Capability Special Fund of Ministry of Science and Technology in 2014 (No.2014EG119119)
- DOI：10.3969/j.issn.0372-2112.2016.06.028
  CLC： TN911
- Published：2016
- 稿件说明：
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A New Signal Detection and Estimation Method by Using Duffing System[J]. Acta Electronica Sinica, 2016, 44(6): 1450-1457.
DOI：

A New Signal Detection and Estimation Method by Using Duffing System[J]. Acta Electronica Sinica, 2016, 44(6): 1450-1457. DOI： 10.3969/j.issn.0372-2112.2016.06.028.

摘要

为了给出一种基于Duffing系统的完整信号检测与估计方法

本文采用了耦合型间歇混沌振子

并引入了变尺度方法

以实现仅用单个Duffing振子完成对未知频率具有任意出相位的正弦信号的检测与频率估计.此外本文还提出了一种新的正弦信号幅值、相位同步估计方法

并综合方法原理和仿真实验结果证明了此方法具有估计精度高、抗噪声干扰能力强和实时性好的优点.最后用一组仿真实验结果验证了本文所提出的检测方法的有效性和估计方法的准确度.

Abstract

In order to give a complete signal detection and estimation method based on Duffing system

this paper uses the coupling Duffing oscillator

and introduces the variable scale method

to detect and estimate the sinusoidal signal with unknown frequency and arbitrary phrase just by one Duffing oscillator.Besides

this paper puts forward a simplified method which is based on chaotic oscillator for estimating the amplitude and phase of the signal to be measured

and integrated method principle and the simulation experiment result proves that this method has high estimation precision

strong ability to resist noise interference and the advantages of good real-time performance.Finally

using a simulation result of a analog signal for verifying the availability and accuracy of the detection and estimation method is proposed.

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