c banding meaning in English
c显带,着丝粒显带
Examples
- In terms of the pic simulation , the output power of 1 . 5gw at c band and 200mw at x band in milo have been obtained
用整体上移的办法增加高次谐波，通过对输出频率的选择，在x波段获得了250mw的功率输出。 - The milo works at 500mw c band driven by a 400kv , 60ka electron beam has been done in experiment . a new coaxial - structure super - reltron was explored to develop a low - impedance high - power microwave tube
我们还对c波段milo进行了实验设计，理论结果为：在外加电压400kv ，电流60ka ，微波输出功率1gw ，目前实验已经达到了500mw以上的微波输出。 - In this study , we demonstrate a technique using the multi - temporal c band hh polarized radarsat scansar data to estimate the relative soil moisture change . the experiment data from sgp97 covered a whole range of vegetation growing season and different type agriculture fields
研究证明，星载合成孔径雷达( sar )得到的地表后向散射系数与地表介电常数有直接相关关系，从而能够在水文模型要求的精度范围内有效提取地表土壤水分信息。 - This subject comes from the project : c band low phase noise tunnable jumping frequency source in chengdu saiying science and technology co , . ltd . the frequency synthesis technology of pll + mixer is adopted in the final scheme . at first , the developing history of the frequency synthesis technology is reviewed . then direct frequency synthesis technology 、 pll frequency synthesis technology are introduced
本文首先首先简述了频率合成技术的发展历史,介绍了直接频率合成技术、锁相环频率合成技术、 pll +混频的频率合成技术的基本理论以及具体的系统设计中应该考虑的方面。 - For parameter a , there is a close relationship exist between a ( 9 , sr ) in two different radar incident angle that can be expressed as : with considering the effects of soil texture , we get the final expression of the inversion model : where mv ( t1 ) , mv ( t2 ) is volumetric soil moisture content in two different temp , c , d is soil type related parameters , and v ( t1 ) , s ( t2 ) is coresponding bare soil radar backscattering coefficients . inversion results show that for the c band hh polarized radarsat scansar data with a range of incidence angle from 20 to 40 , the soil moisture change value can be derived with an acceptable accuracy using the above model . the temporal and spatial soil moisture change patterns are associated with rainfall and vegetation cover , as well as the soil hydraulic characteristics
利用最新发展的电磁波散射模型研究了不同植被覆盖地表雷达波对地表土壤水分的敏感性，建立了半经验植被雷达后向散射模型; 2 ) .研究发现在农作物等矮小植被覆盖地表，植被层直接后向散射与植被类型相关，且在植被生长期，雷达后向散射系数对植被含水量的敏感性要高于对植被高度变化的敏感性; 3 ) .解决了单参数雷达地表土壤水分反演问题中，雷达入射角和地表粗糙度的影响这一难点问题; 4 ) .利用土壤介电模型校正了不同土壤类型对反演地表土壤体积含水量的影响; 5 ) .在以上成果基础上，建立了完整的单参数雷达地表土壤水分变化探测反演算法，经地表验证，模型反演地表土壤水分变化值的精度为rmse = 0