橫向相干 的英文怎麼說

中文拼音 [héngxiàngxiānggān]
橫向相干 英文
lateral coherence
  • : 橫形容詞1. (蠻橫; 兇暴) harsh and unreasonable; perverse 2. (不吉利的; 意外的) unexpected
  • : 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...
  • 橫向 : broadwise; infeed; crossrange; abeam;transverse; transverse direction; cross; crosswise; lateral;...
  • 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. 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。由於解析度取塊于積累時間,所以利用radnwigner變換得到瞬時的一維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。
  2. Cot1s i deri ng that t he exte ] - ioi - in t el - ference mai n1 y comes from t 11e sea fl o v l11elj i t i s un ( lel ' - i1 t el ", thi s nfr ) j { j1t i ; fi + lk, 7 : f } itft, ? } { t ! : i / cx pal7er veri fj ed t he st i ~ ol1g 1 ~ oi ) ust ness of th is fuxzy va1 - iilb1 e st l ' uctul ' c control method against the mode1 uncertainties and external disturhances, such as the variat ions of the sea current i s sdeed and direct ion, ancl it a1 so coinpared it se1f wi t. h the l > ji ) contl ~ o1 ler in comnlon use and the regu1ar variable structure contro11 er

    論文分別討論了潛器縱和航三個子系統在不同條件下的控制問題,考慮到該潛器潛航時外界擾主要來自海流,驗證了模糊變結構控制方法對模型參數時變及海流速度、方變化的強魯棒性,同時將該控制器跟實際工程中常用的pid控制器和常規的變結構控制器的控制效果進行比較,並結合實際情況,將該控制器同縱傾調節結合進行控制以更好地滿足實際工程的需要。
  3. A rectangular diagram of a logic function of variables drawn with overlapping sub - rectangles such that each intersection of overlapping rectangles represents a unique combination of the logic variables and such that an intersection is shown for all combinations

    一種多變量邏輯函數(求值用)的方格圖,行表示一組變量(與取值) ,縱表示另一組變量(與取值) ,重迭(交)的方格表示若邏輯變量的一種唯一的組合(與取值) ,而且表示了所有可能的邏輯變量的組合(與取值) 。
  4. It is shown that the ability of wavefront reconstruction of lsi is better than hws, for the indirect sampling information of wavefront with lsi is more than hws

    結果表明,在同輸入波前、同探測面元、同擬合函數及階數的情況下,剪切涉儀的波前復原能力比哈特曼波前傳感器強。
  5. Furthermore, the dual integral equations can be reduced to the fredholm integral equations of the second kind and solved by numerical procedure. at the end of this chapter, the numerical analysis for dynamic interaction characters of saturated half - space / layered ground and circular plate is evaluated. finally, the solutions for 3 - d dynamic responding of elastic rect

    基於觀各同性飽和半空間/有限層地基非軸對稱波動方程的通解,按混合邊值問題建立飽和地基與彈性圓板非軸對稱動力互作用的積分方程,求解積分方程后得到觀各同性飽和地基上圓板非軸對稱動力響應的一般解,並分析了飽和地基上圓薄板和中厚板振動的若特徵。
  6. And their performances are compared by simulation. the realization of phase - coherent modulation is studied, especially the carrier recovery. in order to improve the system performance, we consider a receiver which performs optimal phase synchronization and channel equalization jointly

    本文詳盡的研究了線性和非線性自適應均衡器的結構和典型演算法( lms和rls ) ,對其性能進行了模擬比較;對調制解調技術的實現,尤其是載波恢復的方法進行研究,將載波恢復系統和自適應均衡器的參數調整聯合起來,從而提高水聲通信系統的性能。
  7. Finally, compared with the 2d result, the synthetic jet that 3d numerical simulated has a definite direction. the 3d result, however, has a much smaller fluctuation owing to the span - wise instability which created a breakup of coherent vertical structure into smaller scales, it therefore compares more favorably with the measured data in tests

    三、三維模擬結果顯示合成射流的方性極佳,與二維模擬比較,三維數值模擬的速度波動較二維模擬要小,旋渦的結構衰弱,這是因為三維模擬考慮了流動的不穩定性,這更加接近實際情況。
  8. A kind of mud based on transversal equalizer is recommended, and the performance analysis of ds - cdma systems based on that mud has been done under synchronous channels. then the expression of output signal is deduced. also, the relations among sinr of output signal, snr and correlation matrix of spread code the least mean square error ( lms ) adaptive algorithm is applied to the mud

    論文引入基於均衡結構的多用戶檢測器,用矩陣方法推導了awgn通道下、同異步系統中信號輸出表達式,依據最小均方差準則,討論了同步方式下檢測器的輸出信號擾比與信噪比、擴頻碼關陣以及用戶功率大小等因素間的關系。
  9. In this paper, a simplified method of calculating wind - induced response and design loads of super - high - rise buildings was proposed. coherence properties of wind load on typical tall building were analyzed and the results show that cross - wind loads at different height have strong coherence at vertex shedding frequency, and the coherence function ' s value here is near to 1

    首先分析了各測點層合力的特性,結果顯示各測點層所受順風風荷載之間的函數基本成單調衰減規律,而脈動風荷載在漩渦脫落頻率處存在和順風不同的顯著關性。
  10. Abstract : a numerical investigation of three - dimensional separated flows about a hemisphere - cylinder is presented. the analysis has been restricted to transonic and laminar flows. results are given for the complex flow field structures including shock, boundary layer, separated flow, vertical flow and their mutual effects. the topological structures of the separated flow is shown

    文摘:本文數值模擬了半球柱在跨音速、中等攻角時的粘性層流繞流,研究了流場中的復雜三維分離形態結構,其中包含流的主分離、二次分離、以及激波邊界層的擾,解釋了在球柱接合部精確捕獲的壓力波動與流動主分離、二次分離的影響關系,這個現象是前人的計算5 , 6未捕捉到的。
  11. It is indicated by both domestic and overseas relevant researches that the rational allocation of science and technology resources can directly affect the development speed and level of scientific and technological progress, and the extent of integration between technology and economy. the progress of science and technology will play an important role in economic development. in the thesis, the author elaborates the science and technology resource allocation system using three levels, which is micro - level, meso - level and macro - level

    論文針對科技資源配置的關理論,在對國內外現有研究成果分析與評述的基礎上,深入研究中觀層次的區域科技資源的配置理論,構建了區域科技資源優化配置的評價指標體系和基於數據包絡分析(簡稱dea )方法的和縱分析評價模型,對東北老工業基地科技資源配置的現狀進行了系統的分析和評價,從而找出東北老工業基地科技資源配置存在的若問題,提出東北老工業基地科技資源優化配置的對策建議。
  12. Firstly, well logging responses of fractured reservoir have been worked out by using rock core to calibrate well logging data. secondly, with the help of the seismic coherence cube, 3d volume visualization, seismic multi - attribute parameter, the curves of geophysical characteristics restructed, seismic data inversion with well logging restrict, the well curves inversion and so on, much work has been done, such as the full 3d seismic data fine structure interpretation and the studies for predicting the fractured reservoir in buried hills. a technique has been invented to predicting the fractured reservoir of metamorphic rock in buried hills with the integration of the multi - attribute and the multi - parameters

    利用巖芯標定測井資料,研究了裂縫性儲層的測井響應,進而藉助于地震體技術、三維可視化、地震多屬性參數、地球物理特徵曲線重構、測井約束地震反演和測井特徵曲線反演等多項技術開展了全三維地震構造精細解釋和潛山裂縫性儲層預測研究,形成了多屬性、多參數綜合預測變質巖裂縫性儲層的方法。
分享友人