相干法 的英文怎麼說

中文拼音 [xiānggānfǎ]
相干法 英文
coherence technique
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 干 : 干Ⅰ名詞1 （事物的主體或 重要部分） trunk; main part 2 （幹部的簡稱） short for cadre Ⅱ動詞1 （做...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 相干 : 1 （多用於否定句或疑問句） have to do with; be concerned with 2 [物理學] coherent; 相干散射 coher...
  1. The main contributions are as follows : ( 1 ) de ( differential evolution ) algorithm is proposed to invert the ocean acoustic parameters in shallow water in order to get faster and more accurate results than ga ( genetic algorithm ) and sa ( simulated annealing algorithm ). also a posteriori probability analysis method is applied to evaluate the uncertainty of inversion results. ( 2 ) maximum likelihood objective functions for broadband mfi are derived according to different conditions

    （ 2 ）根據不同的前提條件，採用似然比的方法推導了寬帶匹配場反演的最大似然目標函數；深入地研究了寬帶匹配場處理中的相干與非相干問題；在分析參數反演的敏感性之後，提出了淺海環境參數寬帶匹配場反演的多步優化策略，並與全參數反演方法進行了性能上的模擬比較。
  2. Initial growths of disturbances are measured by means of hot - wire anemometry. due to the detected signals with low signal to noise ratio, the coherence function is used to eliminate background noise during data reduction

    在擾動增長的初始階段，信號的信噪比非常地低，根據相關譜分析方法，應用相干函數，將擾動信號有效地提取出來，測量了初始擾動的增長。
  3. By two ways, this paper debates the theory of fracture detection : on one hand by the way of edge detection in image processing ; on the other hand by time series analysis. the detection by time series analysis is more antinoise than edge detection in image processing. edge detection theory in image processing mainly includes correlation data, fuzzy edge detection, entropy operator edge detection and gradient edge detection

    圖像處理中的邊緣檢測的方法主要包括相干數據體法、模糊邊緣檢測法、基於熵運算元的邊緣檢測法、梯度邊緣檢測法；其中模糊邊緣檢測法比較依賴于參數的選擇，其渡越點兩邊的像素區別明顯；熵運算元的檢測方法則是檢測的圖像邊緣比較光滑，連通性好；梯度檢測法可以使用不同的運算元核，演算法比較簡單；相干數據體對于總體的大的裂縫的分佈具有比較奸的反應。
  4. Non - coherent demodulation of bpsk signal based on time measuring

    信號非相干解調方法
  5. The plan of speckle noise reduction we proposed is use the garrote shrinkage function assisted by edge information of scale 2. we compare the speckle reduction results by conventional soft - valve, hard - valve and lee filter methods, and get very good conclusion

    我們提出的相干斑抑制方法是利用小波變換檢測圖像尺度為2的邊緣信息，再利用檢測出的邊緣信息利用garrote削減函數進行小波域的相干斑噪聲濾除。
  6. The focus of this paper is the problem of frequency optimum codes of irrelevance processing. the method of researching optimum codes by using costas array method is given

    著重討論了非相干處理時的頻率最優編碼問題，給出了以costas陣列方式尋找最優編碼的方法。
  7. In this paper, research on the algorithm of complete digital if and baseband transmission system and the realization of transmitter and receiver. / 4 - dqpsk is chosen as digital modulation scheme. the scheme of demodulation is baseband differential detection. sliding correlator can realize the symbol synchronous acquisition ; early - late gate synchronizer is used to do symbol synchronous tracking

    系統的發射機選定/ 4 - dqpsk為調制方式，接收機採用基帶差分解調的非相干解調方式，滑動相關器捕獲發送的pn序列，早遲門同步器跟蹤符號同步，使用相關器對同步后的符號進行最佳判決，並在這些演算法實現的基礎上，實現了直接序列擴頻和解擴技術。
  8. What did he care for the french prints ogling him from all sides of the room ?

    那些從房間的四面八方向他擠眉弄眼的法國舞女跟他什麼相干？
  9. On the other side, we use the method of optical formation process to introduce two fundamental filtering function in frequency domain of coherence system of awg two optical processors are designed, that is optical signal add / minus and phase filter

    另一方面，運用光學信息處理方法，我們探討了awg型相干系統頻譜區兩類基本的濾波函數的引入，設計了兩種光信號處理器：光信號加減器以及位相，濾波器。
  10. The waveform generated using digital systems is of strict coherence, repetitiveness, high stability and programmability, which can also easily realize the waveform parameter agility and generate arbitray waveforms in order to meet the urgent needs for anti - interference and strong viabilities of radars under modern ew environment

    數字方法生成的波形具有嚴格的相干性、可重復性、高度的穩定性和可編程的優點，能夠方便地實現波形參數捷變以及產生任意復雜波形，滿足了現代電子戰環境中對雷達抗干擾和強生存能力的迫切要求。
  11. Wavelet packet transform is used to improve the snr of the incoherent integral radar echo, and bispectrum algorithm is used for signal detection in this united detecting algorithm, based on the modeling for the through - wall radar echo

    在對穿墻雷達回波信號建模的基礎上，用聯合演算法將非相干累積后的回波信號經過小波包變換提高信噪比，再用雙譜演算法進行信號檢測。
  12. In the end of the paper put forth several propositions of china ' s legislation on insider trading including the current situation, comments on the provisions of the present securities law on insider trading, and certain ideas about how to improve the legislation on insider trading. the paper proposes that complete civial liability system be established, the system of the right to include short - swing trading be improved, the mechanism of china wall be established, and the powers and rights of securities supervision administrative committee be improved

    包括內幕交易的民事責任、內幕交易的行政責任和內幕交易的刑事責任。第三部分是完善我國關于證券內幕交易立法的若干構想，包括我國內幕交易行為的特點與成因、對現行《證券法》及相關法律對內幕交易相關制度的規定的評析及完善內幕交易立法的若干構想。主要包括對內幕交易構成要件的完善、完善短線交易歸入權制度、設立「中國墻」制度、建立健全完善的內幕交易民事責任制度等。
  13. This paper reviewed the development of seismic coherence techniques, summarized the physical and mathematical basis of currently available seismic coherence algorithms, their applicability and developing trends, evaluated the key factors affecting the resolution of seismic coherence, and described the applications of coherence technology in seismic interpretation and hydrocarbon potential prediction of reservoirs

    回顧了地震相干體技術發展的歷程，概述了各種地震相干體計算技術的演算法、適用性及其發展趨勢，研究了影響地震相干體解析度的因素，探討了地震相干體技術在地震資料解釋和儲層含油氣預測中的應用。
  14. The inconsistent excitation can be decomposed into a series of irregular incident waves in terms of the spectral decomposition scheme of the hermitian matrix, with which the coherency function of the ground motions under the inconsistent excitation can be obtained numerical results are given to show its stability and rationality

    該方法將隨機輸入下的波動分析問題轉換為多個虛擬激勵下的確定性波動分析組合問題，從而可以方便地獲得場地波動觀測量之間的譜密度矩陣，進而計算給出工程場地的地震動相干函數本文還用數值模擬的辦法對所提出方法的合理性和穩定性進行了探討。
  15. Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation

    低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數，我們借鑒isar的技術，通過較長時間的相干積累，在多普勒頻域上對目標進行分辨。而對于編隊目標，可分為近似剛性的多目標和非剛性的多目標，所以對于可以近似為剛體的編隊目標相對位置固定，運動方式一致，可以近似看作一個大目標，採用最小墑準則對平動相位的進行補償，但是大多數並不滿足剛體近似的編隊目標，由於目標在相干積累時間的多普勒頻率近似呈線性變化，通過對較短數據利用relax的時頻分析方法，提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間，所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨，對模擬和實測數據的大量分析結果表明此方法的有效性和可行。
  16. Because of the simplicity of differential detection system, we could consider to apply it to the selective fading channels instead of coherent detection

    由於差分檢測的簡單易實現性，當通道衰落比較嚴重時，可以考慮採用該方法替代相干檢測。
  17. Experience : minimum five ( 5 ) years work experience ( or 2 yrs with phd degree ) in one of the following technologies or related areas : wet flue gas desulpherization ， dry flue gas desulpherization ， electrostatic precipitation ， fabric filter ， computerized fluid dynamic ， in air pollution control or a related industry

    經驗：至少五年（或博士學位+兩年）下列技術或相關領域工作經驗：濕法脫硫，干法脫硫，靜電除塵，布袋除塵，計算機流體動力，空氣污染控制或相關工業。
  18. Several carrier frequency estimation algorithms including ekf and rls with opened loop are analyzed, which aim to settle the carrier phase estimation problem preferably under high dynamic circumstances. an improved phase and frequency esti - mation algorithm is proposed in the paper. simulation results show that the algorithm is faster and more precision than other algorithms

    為更好地解決高動態環境中的載波同步問題，本文進一步研究了存在動態多普勒頻移情況下的開環相干載波同步問題，包括基於擴展卡爾曼濾波、最小二乘演算法等的頻差、相差聯合估計方法。
  19. The coherent demodulation and adaptive demodulation are both realized in these forementioned systems in system view, and the corresponding theory is proved by analyzing and comparing in simulation

    在systemview中模擬實現了上述信號的相干解調和自適應解調兩種方法，並模擬通信的實際環境分析對比解調性能，驗證前述的理論分析。
  20. It commences from review of the theory of sar high resolution in the text, the fundaments and computation procedures of two algorithms for sar raw signal generation ? ? rtpc, 2dfft are introduced

    文中從回顧sar高分辨原理入手，介紹了距離時域脈沖相干法和二維頻域快速傅氏變換法這兩種回波信號生成演算法的基本原理和計算步驟。
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