全极化微波辐射计扫描目标成像方法研究

发布时间：2018-03-07 07:09

本文选题：全极化　切入点：微波辐射计　出处：《遥感技术与应用》2017年03期 　论文类型：期刊论文

【摘要】：微波辐射计是被动遥感仪器,对人体无害,这使其对人体辐射信息成像具有很大的优势。全极化微波辐射计可以通过测量目标的4个Stokes参数得到目标的全部极化信息,这对人体亮度温度分布的测量和分析是一种有效的补充,使全极化辐射计在医学方面的应用成为可能。基于上位机软件控制的二维扫描平台,设计出一套软件控制与成像方法,控制全极化辐射计对目标进行平面扫描,得到目标的辐射亮温图像。使用37GHz的全极化辐射计进行在近场条件下的人体扫描成像实验,得到了T_v、T_h、T_3、T_44个通道的人体量温图像,验证了全极化微波辐射计扫描人体成像方案的可行性。
[Abstract]:Microwave radiometer is a passive remote sensing instrument, which is harmless to human body, which makes it have a great advantage in imaging human body radiation information. Full polarization microwave radiometer can obtain all polarimetric information of the target by measuring four Stokes parameters of the target. This is an effective supplement to the measurement and analysis of the luminance and temperature distribution of the human body, and makes possible the application of the fully polarized radiometer in medicine. Based on the two-dimensional scanning platform controlled by the upper computer software, a set of software control and imaging methods are designed. The target radiation bright temperature image is obtained by controlling the full polarization radiometer to scan the target. The human body scanning imaging experiment under near-field condition is carried out by using the full-polarization radiometer at 37GHz. The human body mass temperature image of Tvsp Th _ T _ T _ 3O _ T _ 44 channels has been obtained by using the Tvsp _ T _ T _ T _ T _ 3T _ T _ 4 channel. The feasibility of the full polarization microwave radiometer scanning human body imaging scheme is verified.
【作者单位】：中国科学院国家空间中心微波遥感技术重点实验室;中国科学院国家空间中心;中国科学院大学;
【基金】：中国科学院空间科学战略性先导科技专项“全球水循环观测卫星背景型号”研究(XDA04061200)项目资助
【分类号】：TP73

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