基于自适应多重线性卡尔曼陷波的互调干扰抑制

郑建拥; 魏光辉

doi:10.12263/DZXB.20211322

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基于自适应多重线性卡尔曼陷波的互调干扰抑制

学术论文 | 更新时间：2025-12-08

- 基于自适应多重线性卡尔曼陷波的互调干扰抑制
- Intermodulation Interference Suppression Based on Adaptive Multiple Linear Kalman Notch
- 电子学报 2023年51卷第4期页码：1030-1038
- 作者机构：
  
  陆军工程大学石家庄校区电磁环境效应重点实验室，河北石家庄 050003
- 作者简介：
  
  [ "郑建拥　男，1994年5月出生于河北省石家庄市，博士研究生.主要研究方向为电磁防护理论与技术. E-mail: 597921795@qq.com" ]
  [ "魏光辉　男，1964年出生，教授主要研究方向为静电与电磁防护技术、电磁环境效应试验评估技术. E-mail: wei-guanghui@sohu.com" ]
- 基金信息：
- DOI：10.12263/DZXB.20211322
  中图分类号： O441;TM937;TN92
- 收稿：2021-09-28，
  
  修回：2022-09-22，
  
  纸质出版：2023-04-25
- 稿件说明：
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郑建拥,魏光辉.基于自适应多重线性卡尔曼陷波的互调干扰抑制[J].电子学报,2023,51(04):1030-1038.

ZHENG Jian-yong,WEI Guang-hui.Intermodulation Interference Suppression Based on Adaptive Multiple Linear Kalman Notch[J].ACTA ELECTRONICA SINICA,2023,51(04):1030-1038.
郑建拥,魏光辉.基于自适应多重线性卡尔曼陷波的互调干扰抑制[J].电子学报,2023,51(04):1030-1038. DOI： 10.12263/DZXB.20211322.

ZHENG Jian-yong,WEI Guang-hui.Intermodulation Interference Suppression Based on Adaptive Multiple Linear Kalman Notch[J].ACTA ELECTRONICA SINICA,2023,51(04):1030-1038. DOI： 10.12263/DZXB.20211322.

摘要

针对环境中复杂多变的电磁辐射所引起的互调干扰问题，提出了一种基于自适应多重线性卡尔曼陷波（Adaptive Multiple Linear Kalman Notch Filter，AMLKNF）的互调干扰抑制方法.利用电磁环境效应试验建立的二阶互调低频阻塞干扰预测模型，在AMLKNF中设计一个自适应逻辑，根据干扰预测模型来调整陷波频率和深度，以抑制二阶互调低频阻塞干扰.最后通过仿真分析了该方法的性能，与传统陷波滤波方法相比，AMLKNF使信号损耗降低了30%以上，响应时间减少了1 ms，证明了该方法可以抑制至少40 dB的二阶互调低频阻塞干扰.

Abstract

For electronic devices with communication function

the intermodulation interference caused by complex and changeable electromagnetic radiation in the environment has always been a difficult problem to overcome. An intermodulation interference suppression method based on adaptive multiple linear Kalman notch filter (AMLKNF) is proposed. An adaptive logic is designed using the second-order intermodulation low-frequency blocking interference prediction model established by the electromagnetic environment effect test in AMLKNF

and the notch frequency and depth are adjusted according to the interference prediction model to suppress the second-order intermodulation low-frequency blocking interference. Finally

the performance of this method is simulated and analyzed. Compared with the traditional notch filtering method

AMLKNF reduces the signal loss by more than 30% and the response time by 1 ms

which proves that this method can suppress the second-order intermodulation low-frequency blocking interference by at least 40 dB.

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references

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