English translation for "延拓算子"

continuation operator

Related Translations:

延拓:  continuation

拓酶:  topoisomerase

拓制:  facsimile reproduction

奥拓:  altoautoart

拓郎:  kitagawa takurotakuro

拓也:  takuya

拓张:  enlargement

拓宋:  takuso

邓拓:  deng tuo

拓道:  takudo

Example Sentences:

	1.	In this paper , a " step - by - step " recursive 3 - d frequency - space wed scheme is presented to deal with real data 本文采用三维频率空间域有限差分波场延拓算子以“逐步累加”的方式实现了三维波动方程基准面校正，并对实际数据进行了处理。
	2.	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，在第一步的基础之上建立了七个实际碳酸盐岩缝洞储层缝洞模型(由实际地震资料确定的) ，同样利用高效的波场延拓算子对七个模型进行了正演模拟和偏移处理。
	3.	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 本文围绕缝洞储层地震波场正演与偏移问题，对横向变速波场延拓算子；叠前与叠后正演模拟；叠前与叠后深度偏移；子波的生成；缝洞模型的设计、反射系数的求取、正演、偏移及其波场特征分析进行了一体化研究。
	4.	In term of analyzing and summarizing the existing achievement , propose an advanced and practical wavefield extrapolation operator and arithmetic of forward modeling and migration , which obtain numerical simulation and analysis completely and systemically and exploited new field of fractured reservoir seismic wavefield numerical simulation and applicationin in frequency - wavenumber domain 在总结、分析前人研究成果的基础上，提出了具有前瞻性和实用性的波场延拓算子与正演、偏移算法，较系统全面地进行了数值计算与分析，开辟了频率?波数域缝洞储层地震波场数值模拟与应用的新领域。
	5.	A hybrid migration method , named " fourier finite - difference migration " , is a post - stack depth migration scheme . the downward extrapolation operator is split into three operators : one operator is a phase - shift operator for a chosen constant background velocity , another operator is the well - known first - order correction term , and the third operator is a finite - difference operator for the varying of the velocity function . phase - shift downward extrapolation and finite - difference downward extrapolation preserves the advantage of phase - shift method and finite - difference method 傅立叶有限差分(简称ffd )偏移算法是一种叠后深度偏移算法，其向下延拓算子是一种混合算子，包括三项：一项是处理常速的相移算子，一项是一阶相移修正算子，最后一项是类似45度方程的有限差分算子，用来处理剧烈横向变速。
	6.	Comprehensively discuss the issues in application , adaptive condition and performance , propose a fast arithmetic of forward modeling and depth migration in common shot gathers with one - way acoustic wave equation based on vrselrf , and verify the arithmetic by numerical simulation . concisely discuss the cause of the creation of evanescence and the problem of lateral amplitude discontinuity result from it . fourthly , use the reflectivity model , computed to describe the fracture model , with the formula of computation reflectivity based on elastic - acoustic approximation , and the wavelet model computed by the method , wavelet creation with fourier transform , we proposed , in conjunction with vrselrf wavefield extrapolation operator 第三，将频率波数域稳定的变参考慢度rytov近似广义屏波场延拓算子( vrselrf )应用于叠前与叠后正演模拟、叠前与叠后深度偏移，对算法应用中应注意的问题、适用范围、性能等作了较为全面的论述；提出了基于vrselrf的单程声波方程共炮记录正演模拟和深度偏移快速算法，并通过数值模拟试验对算法进行了验证；简要地讨论了倏逝波的产生原因及其带来的横向振幅不连续性问题。
	7.	The paper concentrates on seismic wave - field forward modeling and migration for the fractured reservoir . it researches the wavefield extrapolation operator for lateral variation of velocity , design four theoretical models and seven practical models with fracture and cavity . base on the progenitor , in the frequency - wavenumber domain with the pspi wavefield extrapolation operator and arithmetic of forward modeling and migration that applied lateral variation of velocity which is strong , the paper obtains the result of numerical simulation and the wavefield characteristic by the way of the forward modeling and depth migration of poststack seismic wavefield 本文围绕缝洞储层地震波场正演与偏移问题，研究了适用于横向变速波场延拓算子，建立了四个理论的缝洞模型和七个实际的缝洞模型，在总结、分析前人的研究成果的基础上，利用适合横向速度剧烈变化的相移加插值的波场延拓算子，在频率?波数域对上述的地质模型进行正演、偏移处理，最后得到了缝洞储层地震波场的一些特征。
	8.	Author , starts from the one - way wave equation of wavefield extrapolation , research the relationship and transform condition of wavefield extrapolation operators , and propose the steady variational reference slowness rytov approximation general screen wavefield extrapolation operator ( vrselrf ) which can adapt severe lateral velocity variations , in frequency - wavenumber domain , and the improved wavefield extrapolation scheme , also give the method to improve the computation efficiency . the achievement establishes the theoretic basis of the whole research 首先，从波场延拓的单程波方程出发，系统地研究了频率波数域的波场延拓算子之间的相互关系和转换条件并在此基础上提出了能适应剧烈横向变速的频率波数域稳定的变参考慢度rytov近似广义屏波场延拓算子( vrselrf )和部分波场延拓改进方案及提高运算效率的措施，为整个研究打下理论基础。
	9.	Firstly , the paper starts from the one - way wave equation of wavefield extrapolation , research the relationship and transform condition of wavefield extrapolation operators , and improves on the wavefield extrapolation operator and so heightens the operation efficiency , and chooses the pspi that fits to the lateral variation of velocity to resolve the wave - equation , which lay a foundation of the theoretic study 首先，从波场延拓的单程波方程出发，研究了频率?波数域的波场延拓算子之间的相互关系和转换条件，并在此基础上改进了波场延拓方案和提高了运算效率，选择了适合于纵横向速度剧烈变化的pspi方法求解波动方程，为整个研究打下了理论基础。
	10.	Further , analyse the characteristic of the seismic wavefield of fractural reservoir and the influence caused by fracture density , property of the filled material and the strike of fracture . fifthly , in term of research of zhangshulun et al . , concisely discuss the arithmetic of the plane wave forward modeling and migration with phase shift method , in prestack common offset gathers and check the arithmetic by numerical simulation 第四，用基于弹性?声学近似的反射系数计算公式和本文提出的付氏变换子波生成法得到缝洞模型的反射系数模型和子波模型并用vrselrf波场延拓算子对其进行地震波场数值模拟；进一步分析了缝洞储层的地震波场特征及缝洞密度、充填物性质和裂缝走向对其波场特征的影响。

Similar Words：

"延图斯" English translation, "延托夫" English translation, "延拓" English translation, "延拓场" English translation, "延拓法" English translation, "延拓系数" English translation, "延为上宾" English translation, "延维尔" English translation, "延尾" English translation, "延卫" English translation