A seismic ray-tracing method based on Fibonacci search
نویسندگان
چکیده
منابع مشابه
A Basical Study on Two-point Seismic Ray Tracing
In this report, the raypath equation is deduced by using plane wave theory and making high frequency approximation. Two kinds of two-point seismic ray tracing iterative nonlinear methods(the Shooting method and the Bending method) are discussed. The Shooting method fixes one end and apply the raypath equation to find the ray path. The Bending method fixes both ends and use Fermat’s principle to...
متن کاملMobile Radio Propagation Simulation Based on Ray-Tracing Method
あらまし レイトレーシング法は送信点から受信点に到達するレイを幾何学的にトレースするだけで電波伝搬 をシミュレートでき,移動通信のシステム設計やエリア設計に必要な伝搬諸特性を一元的に推定できる魅力的な 方法である.しかし,高精度な結果を得るためには形状と材質(電気的特性)に関する詳細な構造物データを必 要とする.また,広範囲にわたる多くの構造物を対象に相互作用回数(反射,回折,透過)の多いレイをトレー スしなければならず,演算に多くの時間を要する.本論文では,筆者らが開発した市街地マクロセル対応のレイ トレーシングシステムの概要を述べる.本システムには演算処理の高速化を実現するために筆者らが提案してい る様々な高速化技術が適用されている.また,本論文では市街地の実測データと比較することにより本システム の演算時間と推定精度を評価し,本システムが実用に資するものであることを明らかにする...
متن کاملRay Tracing Method
Although the optical microscope has been the main tool for observations of etched tracks in solid state nuclear track detectors for many years, there has been relatively little investigation about the optical characteristics of these tracks. This chapter describes the application of the ray tracing method to light propagation through these etched tracks. The method is shown to be able to reprod...
متن کاملINVESTIGATION OF SEISMIC PERFORMANCE OF STEEL FRAMES BASED ON A QUICK GROUP SEARCH OPTIMIZER
A quick group search optimizer (QGSO) is an intelligent optimization algorithm which has been applied in structural optimal design, including the hinged spatial structural system. The accuracy and convergence rate of QGSO are feasible to deal with a spatial structural system. In this paper, the QGSO algorithm optimization is adopted in seismic research of steel frames with semi-rigid connection...
متن کاملDynamic ray tracing and traveltime corrections for global seismic tomography
We present a dynamic ray tracing program for a spherically symmetric Earth that may be used to compute Fréchet kernels for traveltime and amplitude anomalies at finite frequency. The program works for arbitrarily defined phases and background models. The numerical precisions of kinematic and dynamic ray tracing are optimized to produce traveltime errors under 0.1 s, which is well below the data...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annals of Geophysics
سال: 2017
ISSN: 2037-416X,1593-5213
DOI: 10.4401/ag-7128