Research on Improving Resolution for Near-Field Millimeter Wave Imaging with Artificial Noise

摘要：

Effects of illumination on the object for millimeterwave imaging were investigated to improve the resolution.Relationship between apparent temperature of object andoutput voltage of the receiver was discussed,imaging results ofpassive millimeter wave system without illumination andsystem with illumination were simulated respectively,changesfor objects apparent temperature and thermal sensitivity underillumination of artificial noise were analyzed.Resultsdemonstrate that the temperature gradient for different pixelswith different material is greater under illumination which canbenefit the resolution of the image.Images with higherresolution can be obtained even without a low noise-figurereceiver.

关键词： millimeter wave imaging temperature artificial noise thermal sensitivity

作者: Lu Kai Qiu Jinghui Zhuang Zhong Wang Nannan

作者单位: School of Electronic and Information Technology,Harbin Institute of Technology,Harbin,150001,China

会议类型: 国际会议

会议名称: 2008 China-Japan Joint Microwave Conference(2008年中日微波会议)

会议地点: 上海

会议语种:英文

页码: 714-717

在线出版日期: 2008-09-10（万方平台首次上网日期，不代表论文的发表时间）