一种用于火灾检测的X波段辐射计系统  

An X⁃band radiometer system suitable for fire detection

作　　者：邹艺杯 丰励 赵阳[1] 郑文超 鲁栋 ZOU Yibei;FENG Li;ZHAO Yang;ZHENG Wenchao;LU Dong(School of Electrical and Electronic Engineering,Hubei University of Technology,Wuhan 430068,China)

机构地区：[1]湖北工业大学电气与电子工程学院,湖北武汉430068

出　　处：《现代电子技术》2025年第5期175-180,共6页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(42241138)。

摘　　要：为了解决传统火灾检测系统在森林、复杂的山区地形等场景下可能会出现误报或漏报的问题,文中设计了一种用于火灾检测的X波段辐射计系统,其主要包括两部分,分别是前端高定向阵列天线以及直检型辐射计通道。阵列天线经实测,增益达到21.44 dB,3 dB波束宽度小于15°,辐射计通道包括低噪声放大器模块、带通滤波器模块和对数检波模块,该通道具有体积小、高集成度、低功耗等特点。实验结果表明,系统能够探测不同环境下温度的辐射能量,并最终以电压的方式呈现。An X-band radiometer system specifically for fire detection is designed to get rid of the false alarms and missed detections that the traditional fire detection systems may encounter in forests and complex mountainous terrains.The system comprises two main components,namely a front-end highly-directional array antenna and a direct-detection radiometer channel.The array antenna,tested for performance,achieves a gain of 21.44 dB with a 3 dB beamwidth of less than 15°.The radiometer channel includes a low-noise amplifier module,a band-pass filter module,and a logarithmic detector module,characterized by its compact size,high integration and low power consumption.The experimental results demonstrate that the system can detect radiative energy from temperatures in various environments and ultimately represent it in the form of voltage.

关 键 词：微波辐射计 微带阵列天线 火灾检测 辐射计通道 X波段 低噪声放大器 

分 类 号：TN822-34[电子电信—信息与通信工程]