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1·The quantity of the EM energy that reflected from the ground decided the quality of the satellite image of passive remote sensing.

地形决定了地面电磁波反射的强弱，反射的强弱又决定了被动遥感影像的质量。

2·Now a method is suggested which USES a passive remote sensing equipment-microwave radiometer for detection and identification of air object.

文中提出了微波辐射计去探测和识别空中目标的方法。

3·Microwave radiometer is the core equipment of passive microwave remote sensing and a powerful tool for ground objects radiation detection, imaging and characteristics recognition.

微波辐射计是无源微波遥感的核心设备，是进行地物背景微波辐射特性探测、成像和判断的主要工具。

4·And relationship between active and passive microwave remote sensing has been studied in detail using uniform based microwave scattering and emission model.

本文利用统一基础的微波辐射散射模型，对主被动微波遥感之间的关系进行了深入研究。

5·Widely used in guidance and remote sensing, millimeter wave radiometer is a typical microwave passive detection system.

毫米波辐射计是一种典型的无源微波探测系统，在遥感和制导中获得了广泛的应用。

6·A passive IR remote sensing alarm system for pollution clouds have been developed.

已研制完成了一套被动红外污染云团遥感报警系统。

7·The results indicate that this optical remote sensing method based on passive DOAS is an effective means of rapidly determining the distribution of city gaseous pollutant.

实验结果表明车载DOAS的光学遥测方法为城市污染气体分布快速测量提供了一种有效的手段。