sky radiation 中文意思是什麼
sky radiation
解釋
慢天空輻射-
The apparent reflectance algorithm estimates the clear - sky visible apparent reflectance as the bases of visible channel thresholds with the 6s radiation transfer model. cloud detection is tested with apparent reflectance algorithm to gms5 images
將表觀反射率乘以不同的系數得閾值，待檢測雲圖的表觀反射率大於閾值的像元為雲像元。 -
The previous methods to parameterize instantaneous clear - sky surface total radiation and net radiation is discussed
摘要討論了晴天地表太陽總輻射和地表太陽凈輻射瞬時值的參數化方法。 -
Sum of direct solar radiation and diffuse sky radiation received by unit horizontal surface. maximum air temperature
在平面上單位面積所受的太陽直接輻射和天空漫射輻射的總和。 -
Abstract : the reflective characteristics of sea and sky background radiation, which have important effect on the infrared signature from flight vehicle above sea, are studied in the paper. the statistical distribution of wave facet directions is discussed, the effects of randomly riging and falling sea wave on the sea surface radiation and on the sun light reflection are also discussed. calculation methods of irradiance from sea surface radiation and reflected sun light on observation point are derived in the paper. finally a computation example is given, which shows the sea and sky background radiation has important effect on infrared characteristic especially in the front area of a flight vehicle
文摘:研究了對近海飛行體的紅外特性有重要影響的海空背景輻射的反射特性.討論了波浪面起伏隨機規律，隨機起伏對海面自身輻射及對陽光反射的影響，推演了此種隨機起伏波浪面的自身輻射及反射的陽光在觀測點形成的輻照度的計算方法.給出的算例結果表明，海空背景對飛行體的紅外特性尤其對其前半球的紅外特性有重要的意義 -
Roughly acquire optical depth of clear sky and clouds from radiation station data and routine meteorological data of land surface, and the study the relationship between clouds " physical character and radiation. obtain the relationship between surface and near - ground atmosphere, and then according to this estimate surface albedo and surface net. by analyzing the relationship between satellite visible spectra, infrared spectra, and water vapor spectra values and radiation, by means of radiation transfer theory, analyze and deducethe relationship between clouds and radiation, and establish relationships between satellite value and global radiation and net
通過衛星雲圖的計數值來判斷雲對輻射的作用，以此建立起它們之間的關系；利用地面觀測資料和常規資料來粗略求取晴空大氣和雲光學厚度，進而研究雲的物理屬性與輻射關系；簡單的獲取地表與近地面大氣之間的輻射關系，以此估算地表的反照率，和地表的凈輻射；分析了衛星可見光、紅外及水汽雲圖計數值和地面輻射之間關系，利用輻射傳輸公式來推倒和分析雲對輻射的關系，試圖建立起衛星測值與地表總輻射和凈輻射之間的關系，並將晴空和有雲的個例分開，分別建立並選出最佳模式，以此來估算地表的凈輻射和總輻射。 -
The far - distance targets can be detected with the aid of the satellite image and the ample respond time of the defensive system can be provided ; the cryptic cruise missile and anti - radiation cruise missile can be effectively detected and tracked recur to the infrared image. radar is widely used in the cruise missile defensive system. the radar in the sky can detect the further flying cruise missile, ground based radar and coastal defense radar can track and help weapons system aim at the oncoming force cruise missile
在目前情況下，衛星圖像、紅外圖像以及雷達成像在探測、跟蹤、識別、打擊巡航導彈目標方面具有相當大的優勢，藉助于衛星圖像可以在遠距離發現目標，能夠為防禦系統提供比較充足的響應時間；藉助于紅外圖像可以有效對付隱身巡航導彈和反輻射巡航導彈；雷達是在巡航導彈防禦系統中使用最多的設備，空基雷達能夠探測離防區比較遠的巡航導彈，陸基雷達和海基雷達能夠跟蹤巡航導彈，並可協助武器系統瞄準來襲巡航導彈，尤其是雷達陣在巡航導彈防禦中更是可以發揮重要作用。 -
A study on the characteristics of reflection spectrum of field of view under night - sky radiation
夜天光下景物反射光譜特性的研究 -
( 3 ) the spectral matching factor of nea phothocathodes for reflecting spectrum of objects under night sky radiation has been studied. the spectral matching factors of typical phothocathodes, such as gaas nea photocathode, s _ ( 251 ) and s _ ( 252 ) photocathode, are calculated and compared. the factors give the explanation of high detection performance of the low - light - level night vision equipments
（ 3 ）研究了nea光電陰極和夜天光照射下景物反射輻射的光譜匹配系數，計算了gaasnea光電陰極的光譜匹配系數，並將之與s _ （ 251 ） 、 s _ （ 252 ）光電陰極的計算結果作了比較，揭示了三代微光夜視儀具有優良探測性能的原因。 -
In this paper, some factors influencing its temperature field have been synthetically analyzed including the ambient temperature, solar radiation, air convection and sky radiation, ground radiation and so on. the hourly temperature of the roof and walls of the tested building in summer and winter was calculated with the finite element software - ansys. the results from calculation had well consistent with the experimental results
本文結合試點建築溫度場監測結果，理論分析了影響建築物溫度場的各種因素，包括：大氣溫度、太陽輻射、空氣對流以及天空輻射、地表環境輻射、建築物自身輻射等因素，總結了實用計算公式，採用有限元數值方法，藉助有限元軟體ansys進行了屋面和各方位墻體在自然環境作用下的溫度場模擬分析，與實測結果比較吻合。 -
The article studies the reflection and radiation light spectrum of the object under the night sky light or with the aid of laser, calculates and analyzes the spectrum matching factor of typical optoelectronic cathode to the common objects and the effect on the light contrast and give the detailed mechanical design of the low light night observing instrument on helmet
摘要本文研究了夜天光照射及激光助視下的景物反射輻射光譜特性，計算並分析了典型光電陰極對常見景物反射的光譜匹配系數及其對照度、對比度等參數的影響，並詳細對頭盔式微光夜視儀進行結構設計。 -
The surface solar total radiation is first calculated when albedo is fixed under clear - sky varying atmospheric conditions by using the radiation transfer model and the model atmosphere profile of the middle latitude summer, and a parameterization scheme is then proposed based on the result
首先利用輻射傳輸模式和中緯度夏季標準大氣廓線，分譜帶計算晴天各種大氣條件下地表反射率取定值時的地表太陽總輻射，並把所得的結果作為標準資料，提出參數化方案。 -
Microwave radiation was detected from all directions in the sky. later on, scientists realized that the origin of this radiation is cosmological. the spectrum matches with that emitted by a blackbody of temperature 3k
1965年，科學家發現天空任何方向皆可偵測到微波，這是一個重要的天文發現，但研究員卻懵然不知，后來才知道這些微波來自宇宙，而這些輻射的光譜對應于絕對溫度為3k的黑體輻射。 -
The global distribution of nssr can be provided by means of satellite remote sensing. in this paper a new parameterization derived by li zhan - qing ( li model ) in 1995 was used to compute the net surface solar radiation for 18 stations of chinese main land on some days over january and february in 2001. after compared the results of li model with those derived from a model ( li - leighton model ) and b model ( langley parameter model ) for clear - sky and cloud - sky respectively, we founded that the relative difference of the two model are below 6 %
結果表明：在晴天情況下， li模式與a模式很相近，而與b模式結果差別較大，因為b模式在晴空條件下是不準確的，這也可以從a模式與b模式的差別看出；在雲天情況下， li模式與b模式結果盡管有些差異，但是相似性仍然很好，除了個別的臺站外，絕大部分臺站兩者的相對差在6以內。 -
Finally, the paper presents the results after processing images data. it includes estimating the cloud - cover, and describing cloud shape, analyzing radiation distribution of clear - sky
第三部分，依據分析所獲得的大氣成像規律，通過圖像估算雲量、辨別雲型、分析輻射分佈等。 -
With the help of special radio telescope, the intensity of radiation can be measured in different parts of the sky.
藉助于專門的射電望遠鏡，就可以測量天空中任何地方輻射的強度。 -
The parameterization of clear - sky surface solar net radiation under the conditions of various albedos is obtained through the error correction due to albedo variation
然後將地表反射率的影響作為誤差項進行訂正，從而得到各種地表反射率條件下的晴天地表太陽凈輻射的計算方法。
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