A Cross Information Fusion Method Based on Iteration for Frequency Estimation

doi:10.15961/j.jsuese.2013.04.018

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A Cross Information Fusion Method Based on Iteration for Frequency Estimation

更新时间：2023-11-14

- A Cross Information Fusion Method Based on Iteration for Frequency Estimation
- Advanced Engineering Sciences Vol. 45, Issue 4, Pages: 156-162(2013)
- 作者机构：
  
  1. 后勤工程学院信息工程系
  2. 重庆通信学院信息工程系信息栅格实验室
- 作者简介：
- 基金信息：
- DOI：10.15961/j.jsuese.2013.04.018
  CLC：
- Published：2013，
  
  Published Online：31 May 2013，
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苏丹,涂亚庆,罗健源,李明.基于迭代的交叉信息融合频率估计方法[J].工程科学与技术,2013,45(4):156-162.

A Cross Information Fusion Method Based on Iteration for Frequency Estimation. [J]. Advanced Engineering Sciences 45(4):156-162(2013)
苏丹,涂亚庆,罗健源,李明.基于迭代的交叉信息融合频率估计方法[J].工程科学与技术,2013,45(4):156-162. DOI： 10.15961/j.jsuese.2013.04.018.

A Cross Information Fusion Method Based on Iteration for Frequency Estimation. [J]. Advanced Engineering Sciences 45(4):156-162(2013) DOI： 10.15961/j.jsuese.2013.04.018.

摘要

中文摘要: 对工程中短时、低信噪比信号进行频率估计时，传统信息融合法存在抗噪性差、信息损失大、信息利用率低等不足，为此提出一种基于迭代的交叉信息融合频率估计方法。由相位关系确定粗测频率范围，在此范围内对交叉组合后的多段信号进行信息融合，得到交叉信息融合频谱，进而利用该频谱与单段信号频谱的关系进行迭代，得到新的交叉信息融合频谱，计算新交叉信息融合频谱的算术平均值实现频率估计。仿真结果表明，与现有方法相比，提出的算法在提高频率估计精度的同时，具有更好的抗噪性和鲁棒性，验证了其可行性和有效性。

Abstract

Abstract:In order to overcome the disadvantage of traditional method such as poor noise immunity

excessive loss of information and low information utilization

a cross information fusion method based on iteration was proposed to improve frequency estimation accuracy.In this method

a frequency range was determined roughly by phase relationship

and cross information fusion spectra were obtained via fusing the multistage signals in this range.According to the relationship of the aforementioned spectra and single-stage signal spectra

new cross information fusion spectra were gained by iteration.Furthermore

frequency estimator was achieved by means of the arithmetic mean value of the new cross information fusion spectra.Simulation result showed that compared to the existing methods

the proposed method was superior in precision

noise immunity and robustness.

关键词

频率估计交叉信息融合融合频谱迭代平均频谱

Keywords

frequency estimationcross information fusionfusion spectrumiterationaverage spectrum

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