English translation for "测云雷达"

cloud detection radar
cloud-detection radar

Example Sentences:

	1.	Cloud detection radar 测云雷达
	2.	As for a space - based cloud radar , the change of the radar reflectivity n and the change of attenuation rate along with the cloud liquid water content have been compared between 37 ghz and 94ghz . the transmittance t of single level cloud for different heights and liquid water content has also been calculated at 2 frequencies . by defining a = n tr , which combines both effects of radar reflectivity and transmittance , we have examined the values of a at 37ghz and 94ghz for high , middle and low cloud liquid water contents 对空间测云雷达，讨论了37ghz和94ghz这两个频率的雷达反射率和衰减系数随云液水含量的变化；计算了不同高度的单层云在不同频率，不同含水量情况下的云层透过率_ ；定义a = _来综合考虑雷达反射率和透过率对空间测云雷达回波的影响，分析比较了云含水量高、中、低时37ghz和94ghz的a值大小。
	3.	Main conclusions drawn from the analyses of calculating results are as follows : ( 1 ) the microwave absorption of atmosphere gas have obvious attenuation at the wavelengths for cloud detection , thereinto , the water attenuation effect changes greatly , so the 94ghz cloud detecting radar should have water vapor attenuation correction scheme . ( 2 ) when 37ghz and 94ghz radars detect clouds , the difference between the atmosphere and cloud attenuation and the large variety of radar reflectivity conduce the intension of the radar backscatter signals change . ( 3 ) for the thin cloud layer and low water content of cloud , 37 - ghz radar backscatter signals are not as good as 94 - ghz radar , that is to say that the 94ghz radar has better capability in thin clouds detection 本工作得出如下结论： ( 1 )大气气体的微波吸收在测云波段产生明显的衰减，其中水汽衰减效应变化很大；即将上天的空间94ghz测云雷达必须有水汽衰减订正方案； ( 2 ) 37ghz和94ghz雷达测云，由于大气和云衰减不同和雷达反射率的很大差异，导致雷达回波信号强弱不同； ( 3 )对云层较薄、含水量较少的云，在不计雷达参数的情况下， 37ghz雷达回波信号不如94ghz测云雷达，也就是说94ghz对薄云有更强的探测能力；对云层较厚、含水量大的云，由于强衰减的作用， 94ghz雷达回波信号小于37ghz雷达； ( 4 )从大气衰减的不利因素方面考虑，空间94ghz雷达测高层薄云的效果最好；测低层薄云时需要考虑气体衰减订正；因浓厚云的强衰减作用，探测其中下部的能力大大减弱，不仅要进行衰减订正，而且要借助其他信息来反演整个云层的含水量垂直分布； （ 5 ）为了获得从极薄到极浓厚云的垂直分布探测能力，未来测云雷达系统最好采用双波长甚至三波长（如94 、 37和13ghz ） 。

Similar Words：

"测月激光器" English translation, "测月十字丝" English translation, "测云灯" English translation, "测云经纬仪" English translation, "测云镜" English translation, "测云器" English translation, "测云气球" English translation, "测云汽球" English translation, "测云仪" English translation, "测云照相机" English translation