A Segmented Low-Order Bistable Stochastic Resonance Method for Fixed-Distance Target Detection in Millimeter-Wave Fuze Under Rainy Conditions.

IF 3.4 3区综合性期刊 Q2 CHEMISTRY, ANALYTICAL

Sensors Pub Date : 2025-06-18 DOI:10.3390/s25123801

Bing Yang, Kaiwei Wu, Zhe Guo, Yanbin Liang, Shijun Hao, Zhonghua Huang

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引用次数: 0

Abstract

Millimeter-wave (MMW) fuze signals experience significant degradation in rainy environments due to combined raindrop-induced attenuation and scattering effects, substantially reducing echo signal-to-noise ratio (SNR) and critically impacting ranging accuracy. To address these limitations while satisfying real-time processing requirements, this study proposes (1) a novel segmented low-order bistable stochastic resonance (SLOBSR) system based on piecewise polynomial potential functions and (2) a corresponding fixed-distance target detection algorithm incorporating signal pre-processing, particle swarm optimization (PSO)-based parameter optimization, and kurtosis threshold detection. Experimental results demonstrate the system's effectiveness in achieving a 9.94 dB SNR enhancement for MMW fuze echoes under rainy conditions, enabling reliable target detection at SNRs as low as -15 dB. Comparative analysis confirms the SLOBSR method's superior performance over conventional approaches in terms of both SNR enhancement and computational efficiency. The proposed method significantly enhances the anti-rainfall interference capability of the MMW fuze.

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雨天条件下毫米波引信定距目标检测的分段低阶双稳随机共振方法。

由于雨滴引起的衰减和散射效应，毫米波引信信号在多雨环境中会出现明显的衰减，大大降低了回波信噪比（SNR），严重影响测距精度。为了在满足实时处理要求的同时解决这些限制，本研究提出了(1)一种基于分段多项式势函数的新型分段低阶双稳随机共振（SLOBSR）系统和(2)一种结合信号预处理、基于粒子群优化（PSO）的参数优化和峰度阈值检测的相应固定距离目标检测算法。实验结果表明，该系统在雨天条件下对毫米波引信回波的信噪比提高了9.94 dB，能够在低至-15 dB的信噪比下可靠地检测目标。对比分析证实了SLOBSR方法在信噪比增强和计算效率方面优于传统方法。该方法显著提高了毫米波引信的抗降雨干扰能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Sensors 工程技术-电化学

CiteScore

7.30

自引率

12.80%

发文量

8430

审稿时长

1.7 months

期刊介绍： Sensors (ISSN 1424-8220) provides an advanced forum for the science and technology of sensors and biosensors. It publishes reviews (including comprehensive reviews on the complete sensors products), regular research papers and short notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.