高波段 的英文怎麼說
中文拼音 [gāobōduàn]
高波段
英文
high band- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 段 : Ⅰ量詞(部分) section; segment; part; paragraph; passage Ⅱ名詞(姓氏) a surname
- 波段 : [電學] wave band; wave range; band; range; frequency range; frequency band
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And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed
研究結果如下:首先針對荒漠化地區的地物特徵,對高光譜數據不同波段的數據質量、波段組合進行了評價,提出了適用於荒漠化監測的基本波段選擇集;初步了解和掌握了研究地區的地物光譜特性及變異規律,進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎;發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象,對于譜形相似而整體反射率的值相差較大的兩類地物,通過引入均值和方差圖像參與分類得到解決;研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段,這些波段與植被生物量和蓋度都有密切的關系,是開展精細植被分類研究和植被定量反演的重要基礎;像元的導數光譜分析可以消除土壤背景的影響,是進行植被生物量和蓋度定量反演的有力工具;建立了荒漠化監測主要評價因子的定量反演模型,並分析了模型的適用性。We have made benefic trials on the research of optical limiting materials with abroad protective wavelength, high optical density and high transmission
對于多波段,高光密度,高透過率的光限幅材料的研製,本論文做出了有益的嘗試。On the basis of remote sensing technique ' s good characteristic with large - area, multi - time, multi - photograph variety, manifold abundant spectral information and high ground resolution, the fault tectonics frame, river geomorphy ( such as terrace, floodplain, shoal, etc ) and suspended load, etc. were explained after analyzed the fault tectonics, river geomorphy, characteristic in the tm image by gray bar statistics, primary component analyses, tm741 image integration, line convolve enhancement and model recognition etc. especially 9 piece of fault tectonics were explained in this thesis, in succession, the impacts of the factors severally were analyzed
遙感技術具有大范圍、多時相、多片種、多層次、含有豐富的光譜信息及具有較高的地面解析度的特點。本文利用該技術,運用灰階統計特徵分析和主成分分析、 tm741多波段融合、線性卷積增強、模型提取等一系列遙感解譯分析方法,分析了斷裂構造、河流地貌(階地、漫灘、沙洲)及懸浮物等在tm遙感圖象上的影像特徵,解譯出了安徽南部斷裂構造格架、河流地貌和懸浮物的分佈,並新解譯出了9條近東西向的斷裂。This kind of switch has small cubage and high dependability. it is easy to integration, and has wide foreground in millimeter - wave band
這種開關體積小、可靠性高且易於集成,在毫米波段有廣闊的應用前景。If we again increase the frequency, we come into the range that is used for fm and tv.
假如再提高頻率,那麼就進入調頻廣播和電視所用的波段。In actual fact, a suitably modified amateur radio transmitter operating in either the 420 to 450 megahertz band or the 1. 3 gigahertz band, with a highly directional antenna, is capable of transmitting voice to skull signals at less cost than the price of an automobile
事實上,一個適當限制在420到450兆赫波段或1 . 3千兆赫波段的帶有高度定向天線的業余無線電廣播發射機,能夠把聲音信號傳給頭骨並且所花的費用比一輛汽車的價格還要少。120 ac, air conditioned, airline desk, baby sitting, bar, barber shop, beauty salon, porters, boutiques, business center, conference facilities, coffee shop, coffee maker, concierge desk, 24 hour front desk, disco, drugstore, driving range, elevators, florist, exercise gym, hairdryer in room, health club, horseback riding, international direct dial, kitchenette, guest laundromat, maid service, mini bar, modem jack, multilingual, free newspaper, news stand, small pets allowed, playground, heated pool, indoor pool, outdoor pool, poolside snackbar, bus parking, parking, putting green, refrigerator, restaurant
酒店擁有標準間豪華間商務豪華間及商務套間,以及商務豪華復式套房408間,房內設施全,設有彩色電視衛星電視頻道閉路電視及收音波段室內冰箱獨立冷暖風空調系統。酒店的「浪花」會員制娛樂部更擁有北京市獨有的室內外連通的超豪華暖水游泳池,溫泉歐式桑拿日式沖浪按摩及太陽浴將滿足您健身及放鬆的需要。酒店附近的跑馬場和27洞高爾夫球場則是鍛煉的好去處。Partial radiation pyrometers are sensitive to narrow selective wavebands.
部分輻射高溫計在窄的選擇波段上是靈敏的。Because of the presence of the first - order sea echoes with dominant amplitude, the doppler resolution technique which based on the range - velocity transformation is needed to extract the targets information in hf radar
高頻雷達工作在擁擠的短波波段,由於絕對占優的一階海浪回波的存在,必須採用基於距離?速度譜變換的多普勒頻率分辨技術來處理雜波,以提取目標信息。For liquid xe aerosol spray target, important lpp characteristics, such as laser - to - euv conversion efficiency, euv radiation absorption, debris production by target material erosion or deposition, are studied in detail, a 13. 4nm conversion efficiency of 0. 75 % into 2 % bandwidth and 2 steradian emission solid angle is achieved at 0. 5mm laser - nozzle distance
在實驗上,建成了一套高光譜解析度和高靈敏度的軟x射線脈沖輻射測量裝置。測量了co _ 2 、 o _ 2 、 cf _ 4 、 kr和xe液體微滴噴射靶lpp光源在6 20nm波段的軟x射線輻射光譜。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
本工作得出如下結論: ( 1 )大氣氣體的微波吸收在測雲波段產生明顯的衰減,其中水汽衰減效應變化很大;即將上天的空間94ghz測雲雷達必須有水汽衰減訂正方案; ( 2 ) 37ghz和94ghz雷達測雲,由於大氣和雲衰減不同和雷達反射率的很大差異,導致雷達回波信號強弱不同; ( 3 )對雲層較薄、含水量較少的雲,在不計雷達參數的情況下, 37ghz雷達回波信號不如94ghz測雲雷達,也就是說94ghz對薄雲有更強的探測能力;對雲層較厚、含水量大的雲,由於強衰減的作用, 94ghz雷達回波信號小於37ghz雷達; ( 4 )從大氣衰減的不利因素方面考慮,空間94ghz雷達測高層薄雲的效果最好;測低層薄雲時需要考慮氣體衰減訂正;因濃厚雲的強衰減作用,探測其中下部的能力大大減弱,不僅要進行衰減訂正,而且要藉助其他信息來反演整個雲層的含水量垂直分佈; ( 5 )為了獲得從極薄到極濃厚雲的垂直分佈探測能力,未來測雲雷達系統最好採用雙波長甚至三波長(如94 、 37和13ghz ) 。At first, the character of millimeter wave and frequency multipliers in millimeter wave band is introduced. based on the principle of harmonic frequency extraction in nonlinear device, we present the avalanche diode high order frequency multipliers in w band
利用雪崩效應中強烈的非線性電感特性,基於非線性器件諧波提取的思想,對倍頻器電路進行了優化模擬,採用雪崩倍頻二極體研製了w波段雪崩高次倍頻器。Professor townes continues to do research at the university of california, berkeley, where his current work involves very high angular resolution astronomy in the mid - infrared through the use of interferometric techniques
湯斯教授現于加州大學柏克萊分校從事多方面的研究,包括應用干涉技術來進行中紅外波段的高角解像度天文研究。( 3 ) the author applied wavelet analysis in the data processing of airborne radioactive survey, and analyzed the effect of wavelet used in spectrum data processing, line data processing and region data processing. the author had proved that the wavelet used in spectrum data processing can gain more true and more ideal information than traditional data processing method, and can accurately identify information which is beyond main energy windows by practice data. the author considered it is effective to extract abnormal information when the wavelet used in line data processing, and it is effective to eliminate the belt of airborne radioactive survey data when the wavelet used in region data processing
有效的融合了遙感航測信息,提高了工作效率; ( 2 )根據光學有關物理性質,製作的模擬反射率圖,囊括了tm數據七個波段的信息,使得圖像質量、地物解析度得到了提高; ( 3 )在航放數據處理過程中引入了小波分析,系統分析了小波在處理單點數據、測線數據、測區數據的應用效果;用試驗數據證明了小波處理單點數據可得到較傳統數據處理方法更為真實、理想的譜數據,能準確的識別主能量窗以外的信息;認為處理線數據,可以提取埋藏於噪音中的異常信息;處理測區數據,對消除航放數據的條帶有一定的效果。Much emphasis has been put on organic nonlinear optical materials because they have many advantages, such as wide response wave band, good flexibility, high optical damage threshold, low cost, and easy combination and modification
由於有機非線性光學材料具有寬的響應波段、良好的柔韌性、高的光損傷閾值和較低成本,以及易於合成、可以進行裁減和修飾等特點而備受重視。Frank : 15 - band closes down at night. during the day you can chew the band with china if you want
15米波段夜間沒有傳播。白天的話,如果你高興,和中國的電臺擺龍門陣都可以。Select installation and then antenna setting, and set respectively the local oscillator frequencies of the high - frequency tuner of 146, 138ku, 138c band and so on
選擇安裝里的天線設定,分別設置146 、 138ku及138c波段等等的高頻頭本振頻率。At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength
由於準相位匹配技術有其獨特的優勢,可以利用非線性光學晶體的最大二階極化張量,如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ ( 33 ) ,其有效非線性系數高出普通非線性光學介質(如bbo 、 lbo 、 ktp )一個數量級,而且可以人為靈活設計調制周期,通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段,選擇無走離效應,解決了常規pm難以解決的問題,拓寬了非線性晶體的應用范圍,極大地提高了頻率轉換效率,已成為非線性光學材料和固體激光器的研究熱點之一。Compared to multi - spectral image, hyperspectral image is high spectral resolution, narrow band, and has many bands. it can distinguish targets with reliability
與多光譜圖像相比,高光譜圖像光譜波段數目多、光譜解析度高、波段寬度窄,能夠以較高的可信度區分和辨識地物目標。In the end of this paper, target detection algorithm, classification algorithm and decision fusion algorithms are combined to label the state of the targets
最後,本文在多波段sar目標檢測結果融合的基礎上,結合高波段sar圖像分類結果,實現了對目標狀態的標注。分享友人