Magnetic Anomaly Detection Method Based on Feature Fusion and Isolation Forest Algorithm

In order to improve the weak magnetic detection ability under the background of Gaussian colored magnetic environment noise, a magnetic anomaly detection method based on feature fusion and isolation forest (IForest) algorithm is proposed in this paper. The method uses different feature algorithms to...

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Main Authors: Ning Zhang, Yifei Liu, Lei Xu, Pengfei Lin, Heda Zhao, Ming Chang
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9852660/
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author Ning Zhang
Yifei Liu
Lei Xu
Pengfei Lin
Heda Zhao
Ming Chang
author_facet Ning Zhang
Yifei Liu
Lei Xu
Pengfei Lin
Heda Zhao
Ming Chang
author_sort Ning Zhang
collection DOAJ
description In order to improve the weak magnetic detection ability under the background of Gaussian colored magnetic environment noise, a magnetic anomaly detection method based on feature fusion and isolation forest (IForest) algorithm is proposed in this paper. The method uses different feature algorithms to extract the statistical features, time-frequency features and fractal features of the signal, reduces the dimensionality of the features by principal component analysis (PCA) and generates feature fusion tensors. Finally the IForest algorithm is used to achieve target detection. The simulation and experimental results show that the method has a higher detection rate under different SNR of Gaussian color noise, which is approximately 5%-18% higher than that of the traditional feature detection algorithm. This method can train an effective detection model with only a small number of negative samples. Compared with the fully connected neural network (FCN) model trained with unbalanced samples, the detection rate increases by approximately 5%-12%, and it takes less time.
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spelling doaj.art-9e11a59473e347a6b714e1a899c18dc52022-12-22T03:44:41ZengIEEEIEEE Access2169-35362022-01-0110844448445710.1109/ACCESS.2022.31976309852660Magnetic Anomaly Detection Method Based on Feature Fusion and Isolation Forest AlgorithmNing Zhang0Yifei Liu1https://orcid.org/0000-0001-9328-8493Lei Xu2Pengfei Lin3Heda Zhao4Ming Chang5College of Weapons Engineering, Naval University of Engineering, Wuhan, ChinaCollege of Weapons Engineering, Naval University of Engineering, Wuhan, ChinaUnit 92859 of PLA, Tianjin, ChinaDepartment of Hydropower and Chemical Defense, Dalian Naval Academy, Dalian, ChinaUnit 91977 of PLA, Beijing, ChinaCollege of Weapons Engineering, Naval University of Engineering, Wuhan, ChinaIn order to improve the weak magnetic detection ability under the background of Gaussian colored magnetic environment noise, a magnetic anomaly detection method based on feature fusion and isolation forest (IForest) algorithm is proposed in this paper. The method uses different feature algorithms to extract the statistical features, time-frequency features and fractal features of the signal, reduces the dimensionality of the features by principal component analysis (PCA) and generates feature fusion tensors. Finally the IForest algorithm is used to achieve target detection. The simulation and experimental results show that the method has a higher detection rate under different SNR of Gaussian color noise, which is approximately 5%-18% higher than that of the traditional feature detection algorithm. This method can train an effective detection model with only a small number of negative samples. Compared with the fully connected neural network (FCN) model trained with unbalanced samples, the detection rate increases by approximately 5%-12%, and it takes less time.https://ieeexplore.ieee.org/document/9852660/Magnetic anomaly detectionfeature fusionunsupervised learningisolation forestprincipal component analysis
spellingShingle Ning Zhang
Yifei Liu
Lei Xu
Pengfei Lin
Heda Zhao
Ming Chang
Magnetic Anomaly Detection Method Based on Feature Fusion and Isolation Forest Algorithm
IEEE Access
Magnetic anomaly detection
feature fusion
unsupervised learning
isolation forest
principal component analysis
title Magnetic Anomaly Detection Method Based on Feature Fusion and Isolation Forest Algorithm
title_full Magnetic Anomaly Detection Method Based on Feature Fusion and Isolation Forest Algorithm
title_fullStr Magnetic Anomaly Detection Method Based on Feature Fusion and Isolation Forest Algorithm
title_full_unstemmed Magnetic Anomaly Detection Method Based on Feature Fusion and Isolation Forest Algorithm
title_short Magnetic Anomaly Detection Method Based on Feature Fusion and Isolation Forest Algorithm
title_sort magnetic anomaly detection method based on feature fusion and isolation forest algorithm
topic Magnetic anomaly detection
feature fusion
unsupervised learning
isolation forest
principal component analysis
url https://ieeexplore.ieee.org/document/9852660/
work_keys_str_mv AT ningzhang magneticanomalydetectionmethodbasedonfeaturefusionandisolationforestalgorithm
AT yifeiliu magneticanomalydetectionmethodbasedonfeaturefusionandisolationforestalgorithm
AT leixu magneticanomalydetectionmethodbasedonfeaturefusionandisolationforestalgorithm
AT pengfeilin magneticanomalydetectionmethodbasedonfeaturefusionandisolationforestalgorithm
AT hedazhao magneticanomalydetectionmethodbasedonfeaturefusionandisolationforestalgorithm
AT mingchang magneticanomalydetectionmethodbasedonfeaturefusionandisolationforestalgorithm