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Active Electric Anomaly Detection Method for Underwater Targets Based on the Orthonormal Basis Function

Journal of Marine Science and Engineering, ISSN: 2077-1312, Vol: 10, Issue: 3
2022
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Article Description

Electric anomaly detection (EAD) has been widely used for target detection in underwater areas. However, due to the high path loss in the water, an electric anomaly is usually submerged in environmental noise and interference, which affects the detection performance of traditional anomaly detection methods. To address this problem and improve the detection accuracy in a low signal-to-noise ratio (SNR) environment, this paper proposes an active electric anomaly detection (AEAD) method based on the orthonormal basis function (OBF). First, a four-electrode active detection system was designed. Then, a set of OBFs based on the electric field disturbance model were derived to describe the detection system characteristic, linearly and effectively. Finally, an AEAD system was designed, and the proposed method was verified experimentally using a electromagnetic simulation tool to detect a spherical anomaly target. The experimental results show that, compared with the traditional AEAD methods, the proposed method has a better performance.

Bibliographic Details

Yidong Xu; Shengping Zhao; Wenjing Shang; Peisong Jia; Jincheng Gao; Vladimir Korochentsev; Vladimir Grischenko

MDPI AG

Engineering; Environmental Science

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