感發水雷 的英文怎麼說
中文拼音 [gǎnfāshuǐléi]
感發水雷
英文
influence mine-
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
利用最新發展的電磁波散射模型研究了不同植被覆蓋地表雷達波對地表土壤水分的敏感性，建立了半經驗植被雷達後向散射模型; 2 ） .研究發現在農作物等矮小植被覆蓋地表，植被層直接後向散射與植被類型相關，且在植被生長期，雷達後向散射系數對植被含水量的敏感性要高於對植被高度變化的敏感性; 3 ） .解決了單參數雷達地表土壤水分反演問題中，雷達入射角和地表粗糙度的影響這一難點問題; 4 ） .利用土壤介電模型校正了不同土壤類型對反演地表土壤體積含水量的影響; 5 ） .在以上成果基礎上，建立了完整的單參數雷達地表土壤水分變化探測反演演算法，經地表驗證，模型反演地表土壤水分變化值的精度為rmse = 0Multi - sensor information fusion has been developed into an active research field. so it is significant to further get access to this field and apply this technology to the guidance of underwater weapon such as torpedo
本論文介紹了多傳感器信息融合技術的發展過程及其在魚雷等水中兵器中的研究意義和研究現狀，綜述了信息融合演算法以及國內外研究動向。With its ability to image the earth ' s surface in nearly all weather conditions, together with its high spatial resolution, sar has shown its potential for classifying and monitoring geophysical parameters both locally and globally. however, speckle in sar images disturbs its applications
Sar全天候、全天時工作和穿透一些地物的特點，使合成孔徑雷達遙感在固體地球科學、生態科學、水文科學和海洋科學等領域正發揮著越來越重要的作用，但sar圖像的斑點阻礙了sar的應用。Seeing that typhoon has brought great harm to mankind, meterological departments of all countries have attached great importance to the forecast and precaution of tropical cyclones. the prompt development and the wide application of the technology of the satellite remote sensing, radar detection, numerical weather forecast. numerical statistics weather forecast and computer simulation forecast in the field of meterological supervision and forecast has enabled people to improve their forecast level greatly
鑒于臺風對人類造成的巨大的危害，各國氣象部門都十分重視熱帶氣旋的預報預警工作。衛星遙感技術、雷達探測技術、數值預報技術、數值? ?統計預報技術以及計算機模擬預報技術的飛速發展和在氣象監測預報領域的廣泛應用，使人類對熱帶氣旋的監測預報水平得到了大幅度的提高。The millimeter has the largest frequency band and the highest velocity of communication, but it has the highest cost and technical defaults : multi - path effect, reflect and scatter caused by cloud, smoke, water - dropping, the buildings, the grounds and its shape, the interference caus ed by the thunder, the complexity of device, difficult maintenance, and so on. now the band of the leakage coaxial line is up to 3ghz, leakage coaxial line has some advantages : good adaptability to cloud, smoke, water - dropping, the buildings, the grounds and its shapes, good steady field, it has some technical defaults : lower resolution for location and measuring velocity, the more complex of its sending - receiving relay devices, weak anti - interference, the strict demand for the hole size in the line, the cleaner work environment and the higher cost
毫米波具有最大的帶寬和最高的通信速率，但也有最高的成本要求和較難克服的技術問題，即傳播的多徑效應，降水、雲霧、地形、地貌、建築物等的反射散射，打雷時的嚴重干擾，設備復雜，維護困難等等；泄漏同軸電纜的帶寬目前已做到3ghz ，具有對地形地貌建築物的適應性強，場強穩定，但它的定位測速精度低，它的收發中繼設備較復雜，抗干擾能力低，電纜上的開槽有著嚴格的尺寸要求，工作環境要求清潔，成本較高；傳統無線感應技術具有結構簡單，成本低廉，維護方便，定位精度較高的優點，但是，它沒有抗干擾能力。Gareth barry has admitted that he was surprised and delighted to have played such an important role in england ' s qualifiers against israel and russia, and now feels that the england players have the confidence to continue the performance level against estonia and russia
加雷斯?巴里承認他很驚訝也很高興，能夠在英格蘭對陣以色列和俄羅斯的預選賽上發揮了關鍵作用，現在他感受到了英格蘭隊員們有自信保持這樣的狀態水準去對抗愛沙尼亞和俄羅斯。分享友人