毫米波辐射特性分析与研究

An Analysis and Research of MMW Radiometric Characteristic

毫米波与微波相比,波长更短,对于给定的天线孔径尺寸,波束宽度较窄、增益较高,所以毫米波辐射计成像系统在目标探测、跟踪和识别方面具有更好的分辨率和精度。分析了毫米波辐射特性,指出了毫米波在被动探测与成像中的应用,提出了多波束、多通道实现毫米波辐射成像的设想。

Compared with microwave, millimeter wave＇s wavelength is shorter, as antenna apeture size is assigned, its beam--width is narrower and its gain higher,the microwave sensor imaging system has better resolution rate and precision when it is used in target detecting and identification. In this paper, the theory of millimeter wave radiometric characteristic detecting is analyzed, and the application of millimeter wave in passive detecting and imaging is proposed, and millimeter wave radiometric imaging assuming based on the many beams and many channels theory is pointed out.