migration imaging 中文意思是什麼
migration imaging
解釋
遷移成象-
A migration imaging method using cgp stacked cylindrical waves
疊加柱面波偏移成像方法 -
Magnetotelluric sounding whole frequency bands migration imaging versus inversion technique
大地電磁全頻段偏移成像結合反演技術 -
The summarization of the main work is as follows : + a method that can correct the migration through range cells caused by radial speed is presented by using scale transformation, and the method is extended to maneuvering target imaging. the algorithm flow, which is applicable to large - scale target whether it is uniform or maneuvering, is given. the results obtained by using simulation data and real data show that this method is effective
本文的具體內容可歸納如下幾點：分析了用尺度變換可以消除由於徑向速度引起的越距離單元走動，對isar目標進行越距離單元走動校正演算法進行了討論，並把尺度變換校正越距離單元走動后成像的方法推廣到機動目標成像，也給出適合於平穩和機動大目標的成像演算法流程，並通過模擬數據和實測數據的檢驗。 -
Prestack migration method, based on wave motion equation, is also developed for receiver function, and compared with ray method. both p - to - s conversion wave and direct p phase contained in receiver function are migrated and imaged by reverse - time migration for data gather including all receiver functions recorded in all seismological stations for one event, and imaging profile is finally obtained by stacking for all events
本文還在接收函數射線反投影疊加成像的基礎上，提出了一種基於波動方程的接收函數疊前偏移成像方法，將同一事件接收函數中的轉換波和直達p波震相以各自的速度向深度方向逆時延拓成像，並通過不同慢度接收函數的疊加，得到最終的偏移成像結果。 -
This paper presents the prestack time migration to curved rays for minor fault blocks, which is of more accurate migration, allowing the travel - time equation to be more close to the real pathway of layered media seismic wave propagation, the focused imaging to be more precise, the migrated results to be of good preserved amplitude processing property and the output trace gathers to be used for the lithologic analysis and inversion study
採用彎曲射線疊前時間偏移技術使小斷塊準確偏移歸位，其走時方程更接近層狀介質地震波的真實傳播路徑，成像聚焦更精確，且通過特殊振幅處理，其偏移結果有很好的保幅性，輸出的道集可以用於巖性分析和反演研究。 -
From 1920s up to now, various techniques and methods for wave field decomposition, propagation and migration / imaging have been well developed, such as the kirchhoff asymptotic method, frequency - wavenumber domain phase - shift and phase - shift - plus - interpolation methods, and the one - way wave equation based phase - screen and generalized screen methods, etc. wave field extrapolation in these methods is implemented based on the expansion of the wave field by sets of basic functions like spatial fourier harmonies, modes, and green ' s functions
自上個世紀二十年代至今，波場分解、傳播與偏移成像技術經歷了將近一個世紀的發展，形成了多種不同的方法，如kirchhoff波動方程高頻近似解方法，頻率-波數域的相移（ phase - shift ）方法和相移-內插（ pspi ）方法，以及在混合域中基於單向波動方程的相位屏、廣義屏方法等。 -
Based on the simple understanding of normal seismic processing, this paper has carried out deep research on the problems of deep prospecting in seismic data processing, such as s / n ( signal to noise ratio ), velocity analysis and residual nmo of unsymmetrical hyperbola, stacking and imaging of complex rays and migration arc. until now tens of accomplishments have been achieved
在簡單了解地震資料常規處理的基礎上，本文針對當前深層資料的問題，緊緊圍繞著深層地震數據處理技術研究需要解決的重點問題，即信噪比問題、非對稱雙曲線的速度分析與剩餘動校正時差問題、復雜射線的迭加及偏移成像問題和偏移畫弧問題等，進行了深入的研究工作，目前已完成十多個成果。 -
Chapter four briefly researches the principle of range migration algorithm. the relation and difference between frequency scaling algorithm and range migration algorithm are studied carefully. through the point simulation under ultra wide - band system parameters, we compare their imaging performances
第四章簡要介紹了距離徙動演算法原理，著重分析了頻率scaling演算法和距離徙動演算法之間的聯系及區別，並通過超寬帶（ uwb ）系統參數下的點目標模擬比較了它們的性能。 -
Moreover, a series of solution to these difficulties are brought forward : applying the theory of fold related to fault to interpret complex structural belts in piedmont : analyzing the features of the surface and underground seismic reservoir prediction and porosity model construction to predicate effectively the texture and quality of sandbodies ; using structural model to direct the construction of velocity model and process prestack migration imaging of seismic data ; utilizing interval velocity to forecast reservoir pressure : improving the drilling technology for pressure detection and prompt protection of vertical well against incline well
並針對主要難點提出了解決對策：正確應用斷層相關褶皺理論解釋山前復雜改造、開展地表井下地震儲層與孔隙建模有效預測砂體結構與質量，利用有效構造建模指導速度建模與疊前偏移成像、開展層速度預測地層壓力與鉆井壓力檢測及快速防斜打直配套鉆井技術攻關等。 -
After analyzing the theory of mtdi and setting up the model of moving target echoes, the dissertation discusses in detail the effect of moving target doppler center frequency and doppler rate on the conventional sar image. it also analyzes detailedly the range migration of moving target from time field and frequency field and provides migration model in both fields. after that, it divides algorithms of mtdi into several classes, analyzes the influence of signal - to - noise on the detection results and gives the flow chart of moving target imaging processing
本文的主要貢獻包括： 1 、建立了運動目標回波散射模型，深入探討了進行常規sar成像時，動目標的多普勒中心頻率和調頻率對動目標圖像造成的影響；從時域和頻域兩方面詳細分析了由於目標運動造成的距離徙動效應，建立了距離徙動模型；然後研究了動目標檢測原理，並對現有的檢測方法進行分類，使之更加系統化；詳細分析了動目標信噪比對檢測結果的影響，給出了sar系統動目標成像流程圖，指出了動目標成像中的關鍵環節。 -
Firstly, in this paper, the basic principles of sar imaging are exploited following the analysis of sar imaging process ; it is shown that the imaging algorithm of traditional sar can be used effectively only on the condition of narrow relative bandwidth signals, narrow azimuthed processing angle and narrow swath width. large range migration has brought many new features and difficulties. after comparing many imaging algorithms, we find out the direction research of the uwb - sar imaging algorithm
本文首先從sar成像的原理出發，分析了sar成像處理過程；指出傳統sar的高效成像演算法只有在窄信號相對帶寬、窄方位向處理角、窄條帶寬度的條件下才能有效運用，大距離徙動給大處理角uwb - sar成像帶來了許多新的特點和難點，據此分析比較了各種成像演算法，找出了適合uwb - sar高效演算法研究的基礎。 -
The theory of inspects inter - quality of fruit by using spectroscopy and imaging is light migration in fruit tissue
摘要水果組織內光子傳輸特性是利用光譜和光譜圖像檢測農產品內在品質的理論基礎。 -
This thesis mainly studies one of spotlight imaging algorithms named frequency scaling algorithm, and compares this algorithm with range migration algorithm
論文主要研究聚束sar頻率scaling成像演算法。並與距離徙動演算法進行比較。 -
Because of the ambiguity of seismic migration velocity, the quality of seismic migration imaging always bores people
摘要由於地震偏移速度的不確定性，偏移成像的質量很難得到保證。 -
Range migration algorithm ( rma ) and backprojector algorithm ( bpa ) are studied. a new experiment method, bi - static sar, to solve lfm radar range " dead " area as well as its imaging algorithm are presented. the feasibility of the experiment method is confirmed by excellent experiment results
分析研究了波數域成像演算法和後向投影（ bp ）成像演算法；提出了便於軌道實驗的雙站uwbsar實驗方案和成像演算法，並成功應用於軌道uwbsar實驗系統；研究了用於成像處理的插值演算法及其實現方法；研究討論了uwbsar的特殊性。 -
In the paper, in order to reveal the characters of seismic migration image affected by velocity model and improve the precision of seismic migration and imaging, we present some analysis to the complex geology conditions, through modeling and migrating the theoretical model, deduce some features of seismic wave field imaging affected by velocity model, and give some advises to improve the imaging and some useful idea
為了揭示速度模型對地震波場偏移成像的影響特徵，提高偏移成像的精度，對一些復雜地質模型進行了波動方程正演和偏移，並從理論模型的數值模擬結果中，推導出了速度模型對地震波場偏移成像的一些影響特徵，提出了相應的改進建議和一些有益的結論和認識。 -
Time - lapse imaging has reealed that irtually all aspects of neuronal migration and synaptic function inole dynamic interactions with surrounding glial processes
延時成像結果顯示事實上所有神經元遷移和突觸功能現象都存在與周圍膠質動態相互作用過程。 -
Then, the sar imaging principles are studied. some crucial issues, such as model of echo, resolution and range migration are explained and the standard rd imaging algorithm is deduced
對其中一些諸如回波信號模型、解析度、距離徙動等關鍵問題進行了介紹，並詳細推導了標準的距離-多普勒演算法。
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