phase-delay 中文意思是什麼
phase-delay
解釋
相延遲-
This article discussed ar modeling method, capon method, music method and mn method four kinds of high resolution algorithms principle and has separately made the computer simulation in the ideal situation to the above four algorithms. through the comparison, the beam width of high resolution algorithm is much narrower than conventional beamforming method. then unifies the actual utilization, discussed the influence of time delay unbalance, time domain sampling, plane wave supposition and array element with scope and phase not identically to the beamforming and made the computer simulation
本文首先討論了ar模型法、 capon法、 music法和mn法四種高解析度演算法的原理，在理想的情況下分別對上述四種演算法作了計算機模擬，通過比較，高解析度演算法的束寬比常規波束形成法窄得多;然後結合實際運用時的情況，重點探討了延時失配、時域抽樣、平面波假設和基陣的幅相不一致對波束形成的影響並做了計算機模擬。 -
A simple, robust method is proposed that relies on high - resolution measurements and on - line analysis of network traffic to provide real - time alarms in the incipient phase of network anomalies. the anomaly identification algorithms based on behavior model using path changes, flow shift and packet delay variance
通過高性能測量和在線分析網路流和路由信息對初始網路異常產生實時報警，提出基於路由變化、流變化和包延遲建立網路行為模型的網路異常檢測演算法。 -
For phase space reconstruction of ship - radiated noise, using auto correlation function and mutual information to select the delay - time, and using false nearest neighbors method to select the embedding dimension
從自相關函數及互信息嫡兩個方面討論了相空間重構中延遲時間的選擇。 -
To increase the bearing accuracy of amplitude - comparison, the multi - channel system was chosen, the angle of reaching of moving antenna pattern serial was estimated from the frequency domain using the phase - delay estimating method, and at the same time, the selection of antenna, quantization of signal and touch switches were optimized in concrete engineering practice, and so the requirement of the index was satisfied
為提高比幅測向的精度，選用多通道體制，採取相位延時估計法從頻域來估算移動天線方向圖系列的達到角，同時在具體的工程實現上對天線選取、信號的量化、去摸開關等進行優化，從而滿足指標要求。 -
Focusing on the tactical index of ew system - bearing accuracy, this article makes deep - through analysis, comparison and study of the theory basis for traditional direction finding method. a 16 - channel monopulse amplitude - comparison direction finding method and new phase - delay estimating method has been proposed to use, through computer ' s analog computation and relative measures in actual engineering practices, the bearing accuracy of traditional method has been increased and the service requirement of the ew weapon system and adaptability of equipment satisfied
本文圍繞著電子戰武器系統的戰術技術指標?測向精度，對傳統的測向方法的理論基礎進行了深入的分析、比較和研究，提出了採用16通道單脈沖比幅測向體制和新的相位延時估算方法，通過計算機的模擬摸擬計算，以及在實際的工程實現中採取的相關措施，解決了採用傳統的測向方法提高測向精度，滿足電子戰武器系統的戰術技術指標要求和裝備的適裝性。 -
The clock recovery block of usb2. 0 transceiver macrocell consists of phase locked circuit, such as pll and dll ( delay locked loop ). this block use external crystal 12mhz sin signal to produce 60mhz, 120mhz, 480mhz clock signal, and can recover colock signal form date wave. it can support 480mbps ( hs ) and 12mbps ( fs ) word speeds as defined in usb2. 0 specification.
目的是用鎖相環電路? pll和dll （延遲鎖相環）實現usb2 . 0收發器宏單元utm的時鐘恢復模塊。其中pll環路構成的時鐘發生器將外部晶振的12mhz正弦信號生成60mhz 、 120mhz 、 480mhz等本地時鐘信號。 dll環路依據本地時鐘信號對外部數據信號進行時鐘恢復。 -
Overtaking. besides, this thesis also presents fuzzy - based multi - phase intelligent signal control strategy according to the deficiencies of present traffic signal control system and the research of fuzzy traffic signal control, this signal control strategy focuses on the single junction signal control problem, though imitating the ways of traffic police managing the traffic, it has the ability of intelligent phase changing and controlling in the light of the real traffic flow, the simulation result shows : in two - and multi - phase conditions, the average vehicle delay is reduced by 15 % and by 27 % compared with the general fuzzy control method
此外，本文還根據目前交通信號控制方法的不足以及現有的運用模糊控制技術進行交通信號控制研究上的欠缺，提出了基於模糊控制的多相位智能擬人信號控制策略，該控制策略以單交叉口的信號控制為研究對象，通過模擬交通指揮者實際進行交通控制的特點，使控制系統能實時根據各相位車輛的多少進行信號的智能控制，模擬結果表明：與普通模糊交通信號控制方法相比，在兩相位與多相位的模式中可分別減小平均停車延誤平均15和27 。 -
With the three - dimensional ray - tracing program, the simulation of leo - gps occultation is given. the radio path of occultation observation is simulated, and then the excess phase delay is calculated. this work can be used for studying the effects of the neutral atmosphere and ionosphere on the occultation observations and evaluating the performance of the inversion techniques
本文介紹了無線電掩星技術的發展狀況和基本原理，圍繞無線電掩星技術及其應用研究展開諸多研究和探討，主要工作內容如下: 1 、利用全球三維射線追蹤程序，開展leo - gps掩星觀測的模擬研究，以計算掩星觀測時電波傳播路徑、計算大氣引起的附加相位時延等。 -
Differential group delay measurement of single - mode components and devices by the differential phase shift method
利用微分相移法進行單模元器件和裝置的群時延差測量 -
On the one hand, we deduce the off - diagonal term of reduced density matrix is inner - product of two coherent states and we carry out decoherence in macroscopic limits in two special case, on the other hand, we delay decoherent time by controlling the interaction coefficient. in other part, we define two kind independent phase operators by improving two - mode squeezing coherent states in two - mode phase space and resolve their eigenstates
在第二部分中，我們在雙模相位空間里利用雙模壓縮相干態所對應的算符定義二類獨立的相位算符並相應求出本徵態，而它的產生算符和湮滅算符是通過簡諧振子的產生算符和湮滅算符經過正則變換得到的。 -
A new accurate method for measuring the birefringence of muscovite mica has been reported in terms of the dispersion relations of the indices and the variety relations between the phase delay and the wavelength
摘要根據雲母折射率的色散關系和相位延遲隨波長變化關系，給出了一種測量雙折射率比較精確的方法。 -
S phase delay s
時相延遲 -
The variation of db magnitude attenuation and phase delay of reflection is uniformly proportional to distance along the line toward the direction of reflection, where the phase delay is 360 degree per wave length, the db attenuation per meter is twice the one way db attenuation per meter of forward or backward wave
沿傳輸線之反射，即反向傳播與正向傳播電壓沿傳輸線之相量比，其相位落後及分貝衰減沿反射方向之變化則正比于線長，相位落後為每半波長三百六十度，每米之分貝衰減為正向波或反向波單程每米之分貝衰減之兩倍。 -
Three finite - difference methods, i. e., stagger grid, implicit and explicit algorithms, are analyzed in detail. multi - grid algorithm is firstly introduced in elastic wave simulation, to solve for the stability problem inherent in stagger grid and implicit algorithm, also for the efficiency problem inherent in explicit algorithm, and the precision, stability and efficiency for simulation of elastic wave arc increased by multi - grid method. phase - delay method is provided to effectively absorb boundary reflection and increase efficiency for wave motion simulation, based on phase delay and amplitude decaying features along wave propagation
在水平分層介質接收函數的波形反演研究的基礎上，本文系統闡述了非均勻介質中彈性波傳播數值模擬常用的三種有限差分方法：顯式差分、隱式差分和交錯網格法，首次將多重網格演算法應用於彈性波方程的數值模擬問題，克服了交錯網格法和顯式差分法穩定性差，以及隱式差分法計算效率低的缺點，大大提高了彈性波數值模擬的精度、穩定性和計算效率。 -
Calculations indicate that the carrier phase takes effect till the time width of the pulse envelope becomes smaller than the period of the carrier oscillation, and the interpretation of this phenomenon is also presented. it is the difference between phase delay and group delay that causes the sliding between the carrier and the envelope
數值分析的結果表明，當脈寬小於光波周期時，相位的作用開始顯現出來，當脈寬比光波周期長時，載波相位的作用可以忽略，並分析了相位起作用的原因，用解析的方法說明正是相延遲和群延遲之間的差別造成了光載波在脈沖包絡下的滑動。 -
The process that light wave gets through arrayed waveguides can be regarded as a process of extracting spatial sample and filtering spatial frequency. spacial sample is accomplished by period interval arrangement of awg and spatial frequency filtering is accomplished by the fundamental mode and phase delay of each arrayed waveguide which is just a spatial frequency filter
而光場通過陣列波導的過程，可八碩士學住論文waiaster 』 stiesis以看作是空間抽樣以及空間濾波的過程：空間抽樣由陣列波導的周期間隔排列完成，空間濾波由每個陣列波導的基模形式以及位相延遲完成（陣列波導即為一空間濾波器） 。 -
Concerning the key technology of phase delay, the principles and its implementation of digital waveform phase delay based on waveform excitation is explained, which has achieved high transmission phase resolution in experimentation
對于相位延時這一關鍵技術，本文著重闡述了以波形激勵為基礎的數字波形相位延時的原理和實現，經實驗達到了很高的發射延時解析度。 -
In this paper, deconvolution and linearized inversion of receiver function are improved ; multi - channel deconvolution and wavelet inversion are developed for receiver function. the elastic wave motion equation is applied in the simulation and migration of receiver function in lateral inhomogeneous media, multi - grid algorithm is introduced in numerical modeling of elastic wave motion equation, and phase - delay boundary condition is also provided to absorb boundary reflection
在此基礎上，重點研究和發展了橫向非均勻介質中，基於波動方程的數值模擬與偏移成像方法，首次將多重網格演算法引入到彈性波方程的數值模擬和接收函數的偏移成像，還發展了一種延遲邊界方法，以消除人為邊界反射的影響。 -
Through measuring the thickness of mica plates and the wavelengths at which they act as quarter wave phase retarders, the birefringence can be obtained in terms of the function relation between the phase delay, the wavelength and the thickness
通過測量雲母材料的厚度和相應厚度情況下作為/ 4波片使用所對應的波長，利用相位延遲與波長及厚度函數關系式直接求得雲母的雙折射率。 -
Ultrasonic phased array technique can help to achieve flexible, controllable synthesized ultrasound beam by exciting each element of an ultrasonic array transducer with independent phase delay
超聲相控陣技術通過對超聲陣列換能器中各陣元進行相位控制，獲得靈活可控的合成波束。
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