毫米波对大气具有良好的穿透性并能提供较好的角分辨率,因此被动毫米波(PMMW)成像技术越来越受到重视。为科学设计PMMW成像系统,本文在分析被动毫米波成像原理、系统组成及辐射特性的基础上,重点阐述了国内外被动毫米波成像的最新进展及关键技术,包括主要器件、系统和信号处理方法等,并提出了被动毫米波成像的发展方向和应用领域。

Millimeter wave has a nice air propagation property and could provide a moderate angular resolution. On the basis of the discussion involving the theory and characteristic of Passive Millimeter Wave (PMMW) image, the current advances of foreign countries in this domain including the devices, systems, and the signal processing methods are introduced. Then, domestic research work is proposed, and furthermore the developing trend and applications of PMMW image are also detailed.