正演模型 的英文怎麼說
中文拼音 [zhēngyǎnmóxíng]
正演模型
英文
forward model-
Application the forward model we can get the profile of medium that combine in some condition, in order to conduct the attributes optimize, the paper offer some basic principle, and discuss the reliability of attributes from the character of incident wave and from the character of the inter - bed and from the reliable zoon of attributes
正演模型是我們研究地震波屬性和地球物理正問題的一種有效的方法，利用正演模型的研究，提取一些介質組合情況下常用的屬性剖面。提出了一些屬性優化的原則，並且從入射波的特性和巖性以及屬性可信度區間討論地震波屬性可靠性，指導屬性參數的優化。This paper investigated the geological and geophysical meanings of fractals of aeromagnetic anomalies based on forward modeling on erect magnetized rectangular column model
摘要通過對垂直磁化直立矩形柱體模型的理論分析和推導，建立了模型並進行了正演模擬計算，分析了磁異常分形的地質地球物理意義。The forward model of gpr electromagnetic wave propagation in pavement system is developed based on maxwell equation in electromagnetic theory
基於電磁波理論的基本原理，從maxwell方程著手，建立了雷達電磁波在路面結構體系中傳播的正演模型。Finally, using the forward 1 - d modeling and amplitude versus offset ( avo ) technology i examine the three micro models to infer the possible cause of bsr, blanking zone and analyze the validity of avo in hydrate research
最後，通過採用一維正演模型和振幅隨偏移距變化（ avo ）技術，逐一考察了三種微觀模型，進而推斷出bsr以及空白帶產生的可能原因並分析了avo技術在水合物研究中的適用性。Geologic structure modeling is one of the main aim of seismic forward modeling and inversion method, while most of the current modeling systems could not meet the needs of the scientific research and product practices. the geological model input is very complex and very clumsy, so it is high time we solved it by new model description methods and new model input techniques
構造地質模型的建立是地震正演模擬和反演技術的主要目的之一，但目前已有的很多系統尚不能滿足科研與生產的實際需要，構造模型的建立尤其是輸入工作還是非常繁瑣、復雜，缺乏比較先進、實用的模型描述手段和模型輸入技術。The second step, on the base of the first step, the paper designs seven practical models which bases on the practical information of the seismic, by the same way the paper gets the record of the forward and the profile of the migration
第二步，在第一步的基礎之上建立了七個實際碳酸鹽巖縫洞儲層縫洞模型（由實際地震資料確定的） ，同樣利用高效的波場延拓運算元對七個模型進行了正演模擬和偏移處理。The dissertation focuses on seismic wavefield forward modeling and migration for the fractured reservoir. the paper integrates and researches the wavefield extrapolation operator for lateral variation of velocity, analysis of the wavefield characteristic, forward modeling and depth migration of prestack and poststack seismic wavefield, creation of wavelet, design of the model with fracture and cavity, and computation of reflectivity
本文圍繞縫洞儲層地震波場正演與偏移問題，對橫向變速波場延拓運算元；疊前與疊后正演模擬；疊前與疊后深度偏移；子波的生成；縫洞模型的設計、反射系數的求取、正演、偏移及其波場特徵分析進行了一體化研究。Applying this forward model, the system identification theory is firstly introduced to gpr signal analyzing field, and the sidthk program is developed for backcalculating dielectric property and thickness of pavement structures
應用該正演模型，首次將系統識別理論引入探地雷達信號分析領域，提出了路面結構層材料介電特性及其厚度反演分析方法，並開發了反演分析軟體sidthk 。The forward model for gpr electromagnetic wave propagation in pavement system is established based on the basic theory of electromagnetic through analyzing the propagation characteristics of electromagnetic wave propagation in pavement, then the reflected signals of gpr wave propagation in different pavement structures are simulated
基於電磁波基本理論，通過分析雷達電磁波在路面結構層介質中的傳播特性，建立了雷達電磁波在路面結構體系中傳播的正演模型，並依據該模型模擬合成了不同路面結構體系中雷達波的反射信號。In the favorable targets, we performed precise reservoir prediction, imported and developed high resolution acquisition and processing, polar identification, normal modeling, attribute optimism and prediction, 3 - d visualization logging constraint inversion, and predicted the distribution of reservoir. through the application of theory and technology, we have got the better achievements, especially in the regions of qikou slope, bannan slope exploration
在有利目標區，開展了精細儲層預測，引進並開發了高解析度採集與處理技術、極性判別方法、正演模型技術、屬性優化及預測技術、三維可視化技術及測井約束反演預測技術等，較好的預測了目標區的儲層展布。Through the modeling and data process we can find that the principle and method is right
通過正演模型和是及資料處理驗證了理論和方法的正確性。Future study should put emphasis on further improvement of tectono - thermal models and its matching with reverse models
構造熱演化正演模型的進一步完善及正、反演模型的匹配將是未來構造熱演化模擬的發展趨勢。By means of the results obtained, such as the quantificational relationships between the rock ultrasonic wave parameters and the important formation conditions like pressures, and the half - quantificational relationships between the rock ultrasonic wave parameters and porosity and density of those rocks, and the relationships between rock ultrasonic wave parameters and the composition of rocks, we established the corresponding relationships between the ultrasonic wave parameters and depth under the main formation conditions ( indicating temperature and pressure gradient ) in tertiary of zhujiangkou basin, which should be very useful for the geophysical exploration
獲得了巖石聲學參數與壓力等重要地層條件之間的定量關系，巖石聲學參數與孔隙度和密度之間、以及與巖石組成之間的半定量關系，並建立了在珠江口盆地東部第三系主要地層條件下（指溫度梯度和壓力梯度）不同巖石類型的主要聲學參數與深度之間的對應關系，該關系可為地球物理正演模型的建立提供基本參數、並為地震反演提供新的約束機制。This paper deals with the extraction of the seismic attributions, describes their physical significance, studies the relationships between seismic velocity, density and seismic attributions by using model technology, analyses geological implications of seismic attributions, and provides grounds for analysing and selecting seismic attributions in practical application
摘要介紹了地震屬性的提取及其物理意義，通過正演模型技術研究了地震波傳播速度、密度及深度與地震屬性之間的關系，分析地震屬性的地質意義，為在實際應用中對地震屬性的分析、選取提供了一定的依據。In this dissertation, the principle of fem in em was discussed, then the pulse radar and three - layered pavements were analyzed with 20 - noded and 4 - noded isoparametric elements respectively. then, corresponding fem programs are compiled in fortran90. so a forward model was built up to describe the transmitting of electromagnetic in the radar and pavements, according to the system identification method
針對上述情況，本文系統闡述了電磁場有限單元法的基本原理，然後採用二十節點、四節點等參單元分別對pulse雷達實體及三層路面系統進行了靜態場和時變場的有限元分析，初步建立了電磁波在三層路面中傳播的正演模型，同實測波形相比，模擬效果較好，並用fortran90語言編制了相應的三維、二維有限元程序，具有較好的可讀性和可移植性。Firstly, a new joint filterbank precoders and decision feedback equalizers structure is proposed, and the corresponding optimization result based on the maximal mutual information criterion is derived. secondly, the concept of dt canonical model is proposed, which is very suitable for the task of blind signal processing based on the second - order statistical of the observations. thirdly, the methods of blind equalization and identification of the tv dispersive channels are researched systematically based on the proposed dt canonical model, and a subspace blind identification algorithm of the time - invariant channel matrix is developed
本文創新性的成果在於：提出了預編碼-判決反饋聯合均衡系統結構，並從理論推導得出了對應的最大互信息量最優化設計結果；首次提出了時變色散通道的離散正則模型概念，該模型適宜於利用觀察數據的二階統計量進行盲信號處理；基於離散正則模型對時變色散通道進行了系統的盲均衡和盲辨識方法研究，提出了對時不變通道矩陣的子空間盲辨識演算法；針對誤差傳播效應問題，提出了可以消除誤差傳播效應的兩級盲辨識演算法；提出了基於離散正則模型的直接盲均衡演算法；提出了基於特徵恢復思想的神經網路直接自適應盲均衡演算法。But they have some limits and lack flexibility in analysis of concrete problems. henan engineering research center for road ndt technology made an attempt by fft in the year of 2002, but the results were not very good
近幾年來，有人提出在反演計算的基礎上進行正演模擬，大大提高了正演模擬計算的精度和實用性，但目前，因模型的多樣性和復雜性，計算結果千差萬別，很難統一，適合於我國道路狀況的模型還有待進一步研究。By exploiting feedback adjustment, the proposed algorithm requires less model accuracy, together with decreased computation and fastened speed
該演算法實現了模型的在線反饋校正，對模型的精度要求不高，且運算量較小，速度較快。During interpolation, the original frequency of seismic signal is kept very well without negative effect to the subsequent processing. 5. cubic curves are used to geologic structure model input, and the formation boundary becomes smooth, which is good to the forward modeling. this method could hold true to various background
成功地將樣條曲線應用於地質模型輸入環節，保證了地質模型界面的光滑連續，並能夠廣泛適應于各種質量的模型底圖，為正演模擬取得良好的效果奠定了基礎。Using the nonlinear model theory of layered media, the authors developed a method for forward simulation of peg - leg multiple wave
筆者利用層狀介質非線性模型理論，發展了一種正演模擬微屈多次波的方法。分享友人