非連續波 的英文怎麼說

中文拼音 [fēilián]
非連續波 英文
discontinuous wave
  • : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
  • : Ⅰ動詞1 (連接) link; join; connect 2 (連累) involve (in trouble); implicate 3 [方言] (縫) ...
  • : Ⅰ形容詞(連接不斷) continuous; successive Ⅱ動詞1 (接在原有的后頭) continue; extend; join 2 (...
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
  • 連續 : continuation; succession; series; continuity; continuing; running; continuous; successive; contin...
  1. 2. dynamic meteorology : equations of motion ; geostrophic, ageostrophic and gradient winds ; thickness and thermal wind ; continuity equation ; stream function ; vorticity equation ; divergence equation ; omega equation ; rossby wave ; ekman layer ; numerical weather prediction

    2 .動力氣象學:運動方程地轉風地轉風及梯度風厚度及熱成風方程流函數渦度方程輻散方程奧米茄方程羅斯貝埃克曼層數值天氣預報。
  2. But, the measured - data is a very great quantity and every data contain all data of 1 - 25 harmonic, measured time can have hours to days. the count by hand is very heavy and over - elaborate, sometimes the statistics results is error. it won " t reach the analysis purpose and don " t obtain the curve of harmonic oscillation characteristic in a row frequency range

    可是,測試數據經常是大量的,每一組數據又包含從基到25次諧的所有數據,測試時間可能是幾個小時,有的甚至是幾天時間,這樣的工作量由人工完成是常繁重的,又是常繁瑣的,有時還統計不出正確的數值,起不到應有的測試分析目的,更無法獲得頻域內的諧諧振特性曲線。
  3. Abstract : in this paper a new identification model constructed by neural networks with modified inputs and stable filters is presented for continuous time nonlinear systems in order to reduce the inherent network approximation errors. an adaptive law with projection algorithm is employed to adjust the parameters of networks. under certain conditions, convergence of the identification error is proved

    文摘:在用神經網路進行系統建模時,建模誤差的存在是難免的.為了減小這種誤差,本文對時間線性系統提出了一種新的神經網路辨識模型,它是由帶有輸入修正的神經網路和穩定濾器組合而成.文中給出了權值的學習演算法,即權值是根據辨識誤差的投影演算法來改變,證明了在一定條件下辨識誤差的收斂性
  4. In the traditional wavelet transform, because the wavelet filter and coefficient is fixed, as a result, when the discontinuous signal is analyzed, it will produce a lot of big wavelet coefficients in the transition, which makes against the compression. in the image processing, some image is roughness, and it may has sharp edges and oddity parts

    由於傳統小變換的濾器長度和系數是固定不變的,不能適應輸入信號而變化,這使得在分析信號時,在躍變點兩側會產生大的小系數;對具有尖銳邊緣、分段光滑或奇異點、圖文混合圖像處理效果很差。
  5. It is well known that the wavelet liner approximation ( i. e, truncating the high frequencies ) can be approximate smooth singals very efficiently. however, for example, piecewise continous signals with large jump in signal value or in its derivatives, standard wavelet linear approximation techniques cannot achieve similar results for signals which are not smooth. to overcome these problems within the standard wavelet transform framework, the paper proposed the double adaptive wavelet transforms

    眾所周知,小的線性近似(只用低頻系數而不採用高頻系數進行重構的方法稱為線性近似)能常有效的近似初始的光滑信號。然而對于光滑信號,例如具有跳變點的分段信號,標準小的線性近似就不能獲得如光滑函數那樣好的結果。
  6. Non - periodical time function consists of time harmonics with continuous frequency spectrum

    周期時變由頻譜之弦所構成。
  7. Propagation of nonlinear shallow surface water waves at discontinuous point

    線性淺水在不點的傳播
  8. Become a kind of new electronics circuit - current - mode circuit. it is replacing the traditional design method of the voltage - mode in the high frequency high - speed signal processing realm 。 this thesis mainly discussed the modified second - generation current conveyors based on the current - mode kinds of new cuicuit components, they are stronger modified standard current - mode parts in fuctions on this foundation. mainly including the modified differential difference current conveyor ( mddccii ) 、 the fully balanced second generation current conveyor ( fbccii ) 、 ( full balances ) four - terminal floating nullor ( fbftfn ) and the current differencing buffered amplifier ( cdba ), they are all function very strong standard current - mode parts, they all can provide some circuit functions of better than general operation amplifier, because they have the voltage importation and the current importation, therefore use it since can carry out the voltage - mode signal processing circuit expediently, can also carry out the current - mode signal processing circuit expediently, and have to increase the benefit bandwidth to accumulate more widely than the voltage - mode, but have their advantages more according to the current - mode filter of the modified current conveyor, because it constitutes in brief, the filter wave function is stronger and they are better than in general use operation amplifier of many advantages, be easy to composing for example 、 high speed 、 frequency bandwidth 、 the power supply voltage requests low 、 consume small, the impedance is different from etc. advantages, otherwise they have biggish dynamic range, and flexible circuit synthesize, so they are the best active parts

    從第二代電流傳輸器ccii入手,重點研究了以下幾種改進型的第二代電流傳輸器:改進的差動差分電流傳輸器mddccii 、全平衡第二代電流傳輸器fbccii 、多輸出四端浮地零器ftfn 、全平衡四端浮地零器fbftfn 、電流差分緩沖放大器cdba的電路結構及其模型。然後在此基礎上系統地研究了基於這幾種改進型的第二代電流傳輸器的濾器的設計方法,主要方法和結果如下:利用mddccii設計了差分式時間電流模式低通、帶通濾器;電流模式跳耦結構考爾低通濾器;利用fbccii設計了帶通二階節濾器及電流模式雙二階通用濾器;設計了基於多輸出端ftfn的電流模式二階通用濾器電路;通過數字化開關選擇的基於fbftfn的電流模式通用濾器;設計了基於最少個數電流緩沖放大器(兩個cdba )的多功能通用電流模式濾器及其在理想因素情況下分析。設計濾器的主要方法是採用級聯設計、運算模擬(信號流圖法)和反饋設計(跳耦法) 。
  9. In the second section, i. e. chapter two, three and four, firstly, the thermal induced third order nonlinear optical characters of three organometallic complexes ( nil2, cul2, pdl2 ) are studied by the z - scan technique, thermaloptical coefficients of the three compounds excited under different laser wavelengths are calculated the results show that the thermaloptical coefficients are dependent on excitation wavelengths, the absorptions under these wavelengths and molecular structures of these compounds

    第二部分,即論文的第二、三、四章,首先,我們利用激光的457 . 5nm 、 488nm 、 514 . 5nm三個長z掃描方法研究了nil _ 2 、 cul _ 2 、 pdl _ 2三種新型化合物的熱致三階線性光學特性,分別計算了三種化合物在各個長的熱光系數。結果表明,其熱光系數與激發長、在該長下的吸收、及化合物結構都有一定關系。
  10. The origin of supercontinuum ( sc ) generation in optical fibers has been conjectured to be the interplay between fiber nonlinearities ( self phase modulation, cross phase modulation and raman self scattering ) and group - velocity dispersion ( gvd )

    光纖中超supercontinuum ( sc )譜的產生源於光纖中各種線性效應(自相位調制效應、交叉相位調制效應,四混頻效應及受激raman散射等)和群速度色散的共同作用。
  11. Some stiffness matrices of special elements such as rubber bearings and components with field are derived from primary - secondary and inverse transform in structural matrix analysis. then, seismic response analytical models and non - isolated continuous rigid frame bridges are set up, while considering the interaction of soil - pile - structure and traveling wave effect simultaneously. finally, the seismic time history response of the two models is calculated by means of the finite element method, and the results show that the isolated bridge posses powerful earthquake resistance

    首先論述了公路大跨徑橋梁的地震反應分析方法,其中包括樁-土-結構相互作用、行效應等因素對結構物的影響;其次,利用結構矩陣分析中的主從變換和逆步變換,推演了幾個特殊單元的剛度矩陣,包括橡膠隔震層單元和帶剛域構件單元;最後,考慮樁-土-結構相互作用和行效應的結合,分別建立隔震與隔震剛構橋地震反應分析模型,通過有限元法對兩種結構進行時程分析,結果表明:隔震層上部結構的地震加速度反應、位移反應均明顯減小,這說明隔震的剛構橋具有很好的抗震能力。
  12. Thirdly, the method to calculate the 3 - d dynamic responding of layered transversely isotropic saturated soils to an arbitrary buried source in cylindrical coordinate as well as to an arbitrary harmonious source in rectangular coordinate is presented respectively. based on biot ' s wave theory, the 3 - d wave equations in cylindrical coordinate for transversely isotropic saturated poroelastic media are transformed into a group of governing different equations with 1 - order by the fourier expanding with respect to azimuth and hankel integral transform method or by the double fourier transform method with respect to horizontal coordinates in rectangular coordinate. then, transfer matrixes within layered media are derived under the continuous conditions, drainage conditions and the boundary conditions

    基於飽和土的biot動理論,通過fouricr變換,將橫觀各向同性飽和土三維軸對稱動方程轉化為一組一階常微分方程組,再經har止el變換,建立問題的狀態方程,求解狀態方程得到傳遞矩陣;利用傳遞矩陣,結合飽和層狀地基的邊界條件、排水條件及層間接觸和條件,首次給出層狀橫觀各向同性飽和地基在任意地展力作用下的三維軸對稱動力響應的解析解。
  13. Secondly, the nonlinear optical properties with pna molecule in different solvents are studied through using the polarized continuum model and few states approach on the base of time dependent density functional theory, and the first order nonlinear hyperpolarizabilities in second harmonic generation process are computed

    然後在含時密度泛函理論基礎上採用極化模型和少態方法研究了不同溶劑中pna分子的線性光學性質,計算了二次諧振蕩過程的一階線性超極化率,並討論了pna分子的線性光學性質與溶劑極性之間的關系。
  14. Frequency modulated continuous wave synthetic aperture radar ( fm - cw sar ) can be miniaturized, and it is fit for light - duty flight platform wonderfully

    調頻合成孔徑雷達可以實現小型化,能常好地滿足輕型飛行平臺對成像設備的要求。
  15. With the development of the self - oscillating mixer ( som ) theory, the application of som has been studied thoroughly and shows potentials in many fields. this paper introduces the development of som technology in the pass few years at first. then it shows some popular nonlinear techniques used in analyzing the nonlinear circuits. the technology of som can be used in the doppler radar for velocity measurement and in frequency modulated continuous wave ( fmcw ) for distance measurement

    本文通過對自振混頻技術基本理論的研究,介紹了對線性電路進行分析的理論方法以及在自振混頻器技術分析中的應用,然後對自振混頻技術在多普勒測速雷達和調頻( fmcw )雷達上的應用進行了研究。
  16. In the nonlinear optical response, two consecutive coherent pulses with the wave vector k1 and k2 generate new light waves in the new directions

    線性光學響應中,兩矢分別為k _ 1 , k _ 2真的相干脈沖將會在新的方向產生新的光
  17. The origin of supercontinuum spectrum ( sc ) generation in optical fibers has been shown to be the interplay between fiber nonlinear effects ( such as self phase modulation, cross phase modulation, stimulated raman scattering and stimulated brillouin scattering etc ) and group - velocity dispersion ( gvd )

    光纖中超譜supercontinuumspectrum ( sc )的產生源於光纖中各種線性效應(如自相位調制效應、交叉相位調制效應,四混頻效應、受激raman散射與受激brillouin散射等)和群速度色散共同作用。
  18. The propagation of soliton and interaction for the periodic distributed amplification line are discussed in detail, and the explicit soliton solution on continuous wave ( cw ) background is presented, and two exact analytic solutions that describe the modulation instability and the soliton propagation on a cw background are in detail discussed, and inelastic interaction for the vector solitons is also investigated

    具體研究如下三個方面的內容:周期分佈放大系統中孤子的傳輸特性和相互作用;在零邊界條件下孤子解的存在形式並解釋均勻光纖中光脈沖的調制不穩定性以及孤子在背景中的傳輸特性;討論多個光場同時在光纖中傳輸的耦合均勻線性薛定諤方程並詳細研究孤子間的彈性相互作用。
  19. The powerful learning ability and nonlinear reflecting functions of the artificial neural networks can combine the weather factors, typical days and historical load data, but it is not good enough at the embodying continuous variance

    神經網路模型有力的知識學習能力和線性映射功能,將氣象因素、類型日及歷史負荷數據與負荷變化有機結合起來,但此模型對負荷變化的動性體現不夠。
  20. This paper deduces the theoretical signal model of fm - cw sar and the basal. fm - cw sar delivers and processes the signal in the frequency domain so special signal processing structure is established. furthermore, we give the imaging flow on non - ideal condition

    調頻合成孔徑雷達在頻域對信號進行傳輸和處理,建立了信號處理的基本框架,並給出了在理想情況下的成像流程。
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