signal stack 中文意思是什麼
signal stack
解釋
信號堆棧-
3. passive and active time - domain demodulation schemes were demonstrated based on a fiber bragg grating used as a tunable filter controlled by a piezoelectric stack, which was driven by an electrical sine wave signal. the measured strain applied on the sensor axially could be judged by observing the interval of the output between notches within a driving period in time - domain
利用匹配濾波技術，分別採用無源和有源方式，藉助受pzt驅動的解調光柵，將待測應變信息變為時序負脈沖間隔的變化，利用常規的示波器觀測同一掃描周期中兩負脈沖在時域中間隔的變化來確定待測應變的變化。 -
Actual seismic data procession shows the efficiency of this method to increase the signal - to - noise ratio of horizontal stacked profile, especially for inaverage signal - to - noise ratio in pre - stack trace assemblage data
實際地震資料處理表明，這種方法能夠有效地提高水平疊加剖面的信噪比，尤其對于疊前的共中心點道集資料中信噪比不均衡的情況，效果更好。 -
To this paper we were carried tentatively on spectrum whitening in prestack, and each section after division scale is processed with spectrum whitening, particularly the composition of high frequency is raised apparently, the signal - noise ratio of high frequency raise. the resolution of whole section is better than stack
本文還嘗試性地在疊前進行譜白化處理，對分尺度后的各個記錄分別進行譜白化，尤其是高頻成分提高得很明顯，有效地提高了高頻信噪比，整個剖面的解析度明顯增強。 -
This thesis presents two methods to handle the active and passive exceptions in the library function jacket level. one comes up to handle the signal exception efficiently. and the other uses emulated stack unwinding to find the calling address to help handling the try catch exception
為了在庫函數包裝這個層面上快速處理c + +中的異常拋出以及重新拋出的問題，我們提出了動態棧展開的思想，從而得到本該靜態編譯階段才可以得到的函數調用關系，分析得到caller調用callee的準確地址，用於異常區間的檢查。 -
Doing the further research on the division frequency stack on the foundation of study of predecessor, at first the residual moveout correction is done to the seismic record, make the phase axle regularity, doing foundation for the same phase stack ; then carried on division scale processing by wavelet transform ; spectrum whitening is done to each scale, the high and low frequency band need to do prolongs, the middle frequency bands only increase the value of the frequency spectrum ; several kinds of methods that estimate the value of signal - noise ratio has been studied further, and summarize their advantage and disadvantage as well as the scope of application ; the seismic record after spectrum whitening is stacked by weighting with the value of the signal - noise ratio ; then estimate the value of signal - noise ratio which is each scale section after stacking, the scale that the signal - noise ratio is big is assigned big weighting, otherwise, the scale that signal - noise ratio value is small is assigned small weight ing, and carried on weighted reconstruct to each scale section
本文在前人研究的基礎上，在分頻疊加方面做了進一步的研究。首先對地震記錄進行剩餘時差校正，校齊同相軸，為同相疊加做好基礎工作；然後對地震記錄用小波變換的方法進行分尺度處理；對各個尺度分別做譜白化，對于高、低頻段需要做頻帶延拓，中間頻段僅提升頻譜值；對于幾種信噪比定量估計的方法進行了深入的研究，並且總結了它們的優缺點以及適用范圍；對譜白化后的地震記錄用信噪比估計值作為加權系數進行加權疊加；對于各尺度的疊加剖面也進行信噪比估計，對于信噪比大的尺度給予大的加權系數，反之，信噪比值小的尺度給予小的加權系數，對各尺度疊加剖面進行加權重構。 -
The key to enhance the image quality is to separate the reflection that has high signal to noise ratio and the scope of stack can defined optimally by common - angle gathers
提高成像質量的關鍵是分離出信噪比高的反射波並與根據共角度道集選擇最佳的疊加范圍層。 -
In view of characteristics of seismic data of gobi - sand dune areas, this paper, through various data - processing means such as quality control, high - pass filltering, dip angle filltering, field static correction, surface consistency deconvolution, precise velocity analysis, denoising before stack, multiple iterative operation of residual static correction, denoising after stack and modification after shift, has raised the data quality of seismic profiles in low signal - to - noise ratio areas and managed to form the seismic data - processing technique for such complex areas as gobi, foreland and dune
摘要針對戈壁、沙丘地區地震資料的特點，通過對原始資料進行質量控制、高通濾波、傾角濾波、野外靜校正、地表一致性反褶積、精細速度分析、疊前去噪、剩餘靜校正多次迭代、疊後去噪和偏後修飾等處理，提高了低信噪比地區地震剖面的資料質量，摸索出了一套戈壁、山前、沙丘等復雜地區地震資料處理技術。 -
Individual detectors have a mass of a few hundred grams, and researchers can stack a large number of detectors to reach a total mass of a few kilograms or more, thereby boosting the signal
每一個探測器的質量為數百公克，而研究人員可以將大量的探測器堆疊起來，使其質量達到數公斤以上，因此使訊號增強。 -
This can increase efficiently the signal - noise ratio of seismic record, under the general situation, the signal - noise ratio of big scale is small, because low frequency surface wave in big scale is more serious, the correlate of signal is smaller, so weighting stack can press efficiently low frequency surface wave, comparative promote the percentage of the effectual signal in constructing the signal
這樣可以有效地提高重構后地震剖面的信噪比，一般情況下，大尺度的信噪比都較低，因為大尺度內的低頻面波比較嚴重，信號相關性較小，這樣做加權可以有效地壓制低頻面波，相對地提升有效信號在重構信號中的百分比。 -
Based on the similarity of common reflection point trace gathers in one coherent zone, crs stack can focus more energy on the vicinity of the reflector, and therefore can obtain a high signal - to - noise ratio zero offset section by stacking events with the same phase
共反射面疊加利用了鄰近多個共反射點道集的相似性，提高了資料的覆蓋次數，從而壓制了隨機噪聲，增強反射波同相軸的連續性，大幅提高了地震資料的信噪比。 -
Astrometrica can also be used to stack a number of images, adding up the signal of a faint object
本軟體也可用於疊加圖片來增加暗弱目標的信號強度。 -
The communicatin signal was put onto the power - line and ethernet upward layers was migrated to this power - line communication stack. from this way, the new network is compatible with common ethernet as well
該設計採用電力線作為底層數據的傳輸媒介，結合以太網的特點，將以太網的上層協議完全移植到電力線上，如此做法，使得這個網路在上層完全和以太網兼容。
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