migration noise 中文意思是什麼

migration noise 解釋
偏移噪聲
  • migration : n. 1. 移住,遷移;移動;徙動。2. (鳥)移棲,遷徙;(魚)洄遊;(植物)侵移。3. 移住者群,移棲群。4. 【化、物】原子移動;電離子的移動。
  • noise : n 1 聲音,聲響。2 叫喊;嘈雜聲,噪音;喧鬧聲;吵鬧,騷動,騷擾。3 〈古語〉謠言,風聲。4 〈美國〉...
  1. On migrated sections migration noise can become the equivalent limitation.

    在偏移剖面上,偏移噪聲成為等效的界限。
  2. According to these accomplishments, several techniques are expounded emphatically in this paper, including 3d refraction statics, coherent noise suppression by prestack wave field separating ( prestack fx noise attenuation ), 3d prestack multiple domain random noise attenuation, multiples attenuation, nmo of unsymmetrical hyperbola, dynamic replacement of wave equation, surface - inconsistent residual static, super bin stacking, poststack depth migration and prestack depth migration. all the techniques have been applied in seismic processing of 2d, 3d and wide - line profiling and obtained good results

    本文根據項目組研究成果,重點閘述了三維折射波靜校正技術,疊前波場分離相干噪音壓制方法(疊前fx去噪) ,疊前三維多域隨機噪音衰減技術,多次波衰減技術,非對稱雙曲線動校正技術,波動方程動態替換技術,非地表一致性的剩餘時差靜校正技術,超面元迭加處理技術,疊后深度偏移處理,疊前深度偏移處理等。
  3. The research results are controlled source which has linear or nonlinear variabe frequency scan function and the seismic instruments which match with it, and the method of small group intervals, small offset, much more channels, short array length, high - frequency receivers are applied during the link of data acquisition, and that the techniques of the refraction static correction, the noise suppressing, the high - resolution velocity analysis, the wavelet length compression, the wavelet zero - phase, and the prestack migration should be applied emphasizedly during the link of data processing and interpretation

    研究表明,對于城市活斷層的抗干擾高解析度淺層地震勘探,在數據採集環節應採用具有線性或非線性變頻掃描功能的可控震源和與其相匹配的地震儀器,以及小道間距、小偏移距、多接收道、短排列和高頻檢波器接收的工作方法;在數據處理與解釋環節,要重視折射靜校正技術、噪聲壓制技術、高精度速度分析技術、子波壓縮技術、子波零相位化技術和疊前偏移技術等的應用。
  4. Facing the problem that we always ask ourselves whether the technique and parmeters we use are suitable, we have to consider it in five main processing step, deconvolution, static correction, normal moveout, noise attenuation and migration

    根據噪音在處理過程中的不同階段表現屬性不同,處理中採用不同的處理手段或不同的處理參數分階段對噪音進行衰減。以便做到最大限度壓制噪音,而盡可能不損傷有效信號,提高原始資料的信噪比。
  5. 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。
  6. 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。
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