94GHz无源毫米波成像系统在雾霾和烟雾条件下的目标检测

2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO) Pub Date : 2013-12-01 DOI:10.1109/IMWS-BIO.2013.6756216

B. Luo, L. Ong, M. Karim

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引用次数: 1

摘要

设计了一种94GHz无源毫米波(PMMW)成像系统，用于雾霾条件下的目标检测。为了缩小系统尺寸，增加扫描面积和速度，这里采用步进仰角(θ-φ)连续方位角扫描。检测信号中心频率为94GHz，带宽为+/-2GHz。为了提高灵敏度和消除噪声，本系统采用了仪表放大器和截止带宽为10Hz的有源低通滤波器。在一个护套室进行的测试表明，该系统适用于浓烟中目标的探测。

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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Development of a 94GHz passive millimeter wave imaging system for target detection in haze and smoke

A 94GHz passive millimeter wave (PMMW) imaging system is designed, prototyped and tested for target detection in haze and fog. To compact the system size and increase the scan area and speed, continue azimuth with step elevation (θ-φ) scanning is used here. Center frequency of the detected signal is 94GHz and the bandwidth is +/-2GHz. To increase the sensitivity and eliminate noise, an instrumentation amplifier and an active low pass filter with 10Hz cutoff bandwidth are adopted in this system. Test conducted in a sheath room shows that this system is suitable for detecting target in thick smoke.

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来源期刊

2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)

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