红外与毫米波学报2011,Vol.30Issue(6):551-555,5.
基于光子学处理技术的被动毫米波成像
Passive millimeter-wave imaging using photonic processing technology
摘要
Abstract
A passive millimeter-wave scanning imaging method using electro-optic modulation and photonic processing is presented. In this imaging method, the millimeter-wave signal in the radiometer is transformed to optical frequency by electro-optic modulation, and processed by photonic filter and photodetector. The principle of this millimeter-wave signal photonic processing method is described, and the relationship between component parameters and signal conversion is analyzed. The noise characteristics of this processing method are discussed. A passive millimeter-wave scanning imaging system using this photonic processing method was designed, and passive millimeter-wave images acquired using this method were first presented in China. The results show that the proposed passive millimeter-wave imaging method is effective and can obtain comparable imaging quality as that of traditional millimeter-wave radiometer imaging. This passive millimeterwave imaging method has advantages such as large bandwidth and immunity to electromagnetic interferences.关键词
被动毫米波成像/微波光子学/辐射计/电光调制/光电探测/锁相放大器Key words
passive millimeter-wave imaging/ microwave photonics/ radiometer/ electro-optic modulation/ photodetection/ lock-in amplifier分类
信息技术与安全科学引用本文复制引用
张跃东,江月松,何云涛,王海洋..基于光子学处理技术的被动毫米波成像[J].红外与毫米波学报,2011,30(6):551-555,5.基金项目
武器装备探索研究项目(7130730) (7130730)
国家"863"计划项目(2007AA12Z114) (2007AA12Z114)
国家"973"计划项目(2011 CB707001) (2011 CB707001)