輻射的參數化 的英文怎麼說
中文拼音 [fúshèdeshēnshǔhuà]
輻射的參數化
英文
parameterization of radiation-
Using the hulscher model of the formation of sand waves and sandbanks, under the ancient bathymetry, or under the modern bathymetry, the stokes number of the tidal flow and resistance parameter in the radial sandbanks satisfy the conditions for the formation of sandbanks. the research demonstrates that the dynamic flow conditions result in the development of tidal current sandbank. the radial sandbanks and it ' s asymmetrical distributions will still maintain in the future
應用hulscher沙波及沙脊增長模式,通過對該海域斯托克斯數及底部阻力參數的計算首次發現,南黃海輻射沙脊群海域在概化古地形和現代輻射狀沙脊群水下地形情況下,其斯托克斯數及底部阻力參數均滿足形成潮流沙脊的條件。Characteristics of heat balance parameters of arctic ocean drifting ice and open sea are presented based on the profile - flux method and the data obtained by the first chinese national arctic research expedition during aug. 19 24, 1999
利用中國首次北極考察隊於1999年8月19日24日在北冰洋浮冰區獲得的大氣近地層垂直廓線和輻射等資料,依據相似理論方法,對比分析了北冰洋無冰海面和冰面上熱平衡參數的變化特徵。First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled
首先在推導超聲相控線陣換能器聲場的指向性的基礎上,就各個晶片幾何參數對指向性指標(主瓣寬度、旁瓣幅度、消除柵瓣) 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述,並在綜合各方面影響的基礎上,提出了晶片幾何參數優化設計的原則和方法,編寫了設計程序和界面。Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation
在近年來提出的基於質點運動學原理的單站無源定位理論基礎上,本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型,並對它們進行了分析和模擬;第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件;第四章針對傳統擴展卡爾曼( ekf )方法的缺點,提出了一種修正協方差的擴展卡爾曼濾波( mvefk )方法,並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較;第五章通過引入雷達機動目標跟蹤方法和模型,提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法;第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究,提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。A two - cylinder model for saal incorporating bem simulations is proposed, which introduces a factor concerning the geometric parameters of the levitator into the expressions for the time - averaged potential u, acoustic radiation force f, and restoring force constant ki, respectively, and builds up the relationship between the levitation capabilities and the geometric parameters of a single - axis acoustic levitator
建立了單軸式聲懸浮的優化設計理論模型,採用邊界元方法求解入射聲場,在表徵聲懸浮性能的時間平均勢u 、聲輻射力f _ i和回復力常數_ i的表達式中分別引入了一個涉及懸浮器幾何參數的因子。In addition, using the rough quantum theory of gravity, the quantum form of gravitational radiation in weak field is discussed, which is coincident with the classical results, and the calculation program does not need many operators
另外本文採用簡化的量子觀點討論了弱引力場引力輻射的量子表述,計算過程並未涉及大量的算符運算,而且運算結果表明它與經典小參數法得到的相應輻射形式是自洽的。In order to compare the impact of radiation parameterization schemes on simulated short - range weather process and improve the radiation parameterization schemes in meso - scale model version 5 ( mm5 ), the scheme of goddard short wave radiation parameterization has been replanted from weather research and forecast model ( wrf ) to mm5
為了比較長短波輻射參數化方案對中國短期天氣過程模擬的影響,並進一步完善中尺度模式mm5中的輻射過程的參數化方案,作者將wrf中goddard短波輻射參數化方案移植到模式mm5中。The results show that selection of radiation parameterization schemes has distinct impact on the simulated results. the results simulated by the group with detailed long - wave and short - wave radiation parameterization scheme reflect plateau terrain and typhoon, cloud, subtropical high, trough / ridge more particularly and reasonably ; intensity of typhoon rainfall center is improved 1 / 3, there have been some improvements on intensity of the north heavy snow, more approach the observation
通過對2002年第16號臺風個例和2002年12月19 24日降雪個例的模擬,結果表明:選用不同的輻射參數化方案對模擬結果具有明顯的影響,較詳細的長短波輻射參數化方案組合模擬的各種輻射量和雲對地形以及臺風、副高和槽脊等天氣形勢的反映更加細致合理;降水的預報也更加接近實況。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。On such a large time scale the radiation parameterization will become more and more significant.
在這種較大的時間尺度上,輻射的參數化將變得越來越重要。In this paper a system has been developed for studying characteristics of " clouds and sky " on the images taken by a whole - sky camera at three different wave bands ( the visible, the infrared, long wave infrared ), then assessing the presence, distribution, shape, and radiance of clouds over the entire sky using automated cloud decision algorithms and related processing
根據發展自動化雲觀測的目標,利用雲和晴空大氣在可見光近紅外、熱紅外多波段散射輻射和熱輻射的不同特徵,我們嘗試建立一個多波段(可見近、熱紅外)全天空成像輻射觀測系統,進行全天空分波段成像輻射的獲取,定量分析和特徵識別,獲得雲量、雲型、雲底高信息,實現對雲參數化信息的自動獲取。The results also show that the precipitation forecast of the system is very sensitive to cumulus parameterization scheme, planet boundary layer ( pbl ) scheme and radiation scheme. for smaller meshes, the grell cumulus parameterization scheme is better than the other three cumulus parameterization schemes that are also tested in the experiments
數值模擬試驗結果還顯示,模擬降水預報對積雲參數化方案、邊界層參數化方案、輻射參數化方案等比較敏感;在網格比較小時, grell積雲參數化方案優于本文試驗的另外三種積雲參數化方案。Anti - infrared extinction coefficient is a key parameter to assess the obscuring performance of smoke - screen, a method to calculate the viriation of radiant energy and obtain the extinction coefficient based on the temperature tested by a thermal imager has been proved, the practical situation and notice in test also has been illustrated
摘要紅外消光系數是衡量煙幕對紅外遮蔽能力的關鍵參數,文中提出利用熱像儀測得的溫度數據,通過計算得到紅外輻射能量變化及消光系數的方法,介紹應用情況及測試中應注意的問題。Based on apdl, the design language of finite element analysis software ansys, and visual c + +, the software on acoustics design of underwater cylindrical shell structure is developed. when input parameter of the cylindrical shell in the interface redeveloped in this paper, the software execute the batch file of apdl in the vc process to establish the finite element modal and carry out the analysis, the analysis result and the vibration mode can also be displayed. furthermore, the software has been developed to process the acoustics optimization design of the finite cylindrical shell with stiffener in appointed frequency range
本論文從便於工程實際應用出發,對使用有限元分析軟體進行二次開發以方便結構振動分析及改進結構設計的方法和過程進行了研究,在此基礎上對水下航行器圓柱殼體的結構聲學特性進行了分析,在指定頻率區間,對結構以振動輻射聲功率級為目標函數進行了部分參數的結構優化設計,與此同時,為了方便有限元分析軟體的使用和簡化設計過程中大量重復的工作,利用ansys提供的參數化設計語言apdl ( ansysparametricdesignlanguage )結合vc對有限元軟體ansys進行了二次開發,形成了一體化的水下圓柱殼體結構聲學設計軟體。Effect of changing the transducer impedance on the matching layer parameter
換能器輻射阻抗變化對匹配層參數的影響At first, we design a nonlinear parameterized scheme of planetary albedo, and put forward a multiple - parameter zero - dimensional climatic model on the basis of zero - dimensional energy balance model. using it to qualitatively discuss the impact of earth effective radiance, planetary albedo and atmospheric transmittivity on the climatic system behaviour, and analyze the stochastic process of this system later
本文首先在零維能量平衡模式基礎上,設計了一種行星反照率的非線性參數化方案,提出了一個多參數非線性零維氣候模式,用於定性地討論說明地面有效輻射率、行星反照率和大氣透明狀況對氣候系統性態行為的影響,最後分析了系統的隨機過程。With the planted scheme and radiation parameterizations in mm5 four groups experiment schemes have been designed to simulate " sinlaku " typhoon ( 2002 ) and the case of snowfall occurred in 19 - 24 december 2002
並利用移植的方案和mm5模式原有的輻射參數化方案,設計了四組輻射過程處理方案進行數值試驗。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。The formula can be used to calculate surface radiation budget ( srb ) in large - scale numerical models, to make it possible that the calculation of srb is synchronized with model integration
該參數化公式可以用於大尺度數值模式中地表輻射平衡的計算,以期達到地表輻射平衡計算與模式積分同步進行的目的。The method of calculating the equivalent temperature using double ir band radiant intensities is also studied. from the rv and decoy ’ s equivalent temperature data sequences, the temperature feature is extracted to discriminate the rv and decoy, and the decision rule is designed
論文還研究了使用雙波段紅外輻射強度數據測量彈道目標等效溫度的方法,根據彈頭與誘餌對應點目標的等效溫度的變化規律,提取出三個溫度特徵參數,並設計了對應的判決準則用於區分彈頭與誘餌。分享友人