总结了非制冷测辐射热计的经典数学模型，并分析了探测器热绝缘结构和噪声对性能的影响，指出了性能改进和优化的基本途径。
This paper describes the classical mathematic model of bolometer, the effect of thermal isolation and noise on detector performance are also discussed.
介绍了分别采用斜装天线的雷达高度计，以及雷达高度计与其他敏感器组合实现卫星导航的基本原理。
The general principles of the radar altimeter with inclined antenna and combination of radar altimeter and other sensors were introduced in this paper.
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