波包理論 的英文怎麼說

中文拼音 [bāolún]
波包理論 英文
wave packet theory
  • : 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...
  • : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
  • : 論名詞(記錄孔子及其門徒的言行的「論語」) the analects of confucius
  • 理論 : theory
  1. The excimer laser diopter correction and aberration correction have been proved efficiency and safety. based on cad / cam, applied optics, ophthalmology, biomedicine and computer techonlogy, this paper studied the principle of excimer laser aberration correction. the conception, cause of formation and representation of wavefront aberration are introduced

    準分子激光治療屈光不正及消除像差的有效性和安全性已被證實,本學位文將cad 、眼科視光學、前像差技術、生物醫學技術與計算機技術等多學科交叉結合,系統敘述了人眼前像差前像差概念、表示方法、測量方法和產生的原因等。
  2. In this paper, the deconvolution ( and high - order - deconvolution ) electroanalysis theory totally controlled by electrode reaction rates was modified and its properties of polarographic wave was also discussed in detail

    摘要本文提出了完全受電極反應速率控制的去卷積(括高階去卷積)電化學分析,並對形的性質進行了較詳細的討
  3. Secondly, this paper illustrated the nonlinear phase dynamic theory of the aia array and the application of it to power - combining and beam - scaning technique. according to these theories, the coupling parameter of nearest neighbors was found by experiment, then the two - element and three - element aia array were designed, and the result of measurement was in agree with that of the nonlinear phase dynamic theory, and the beam - scaning of two - element array was realized by tuning the free oscillation frequency of the elements

    其次,本文討了有源集成天線陣列的非線性相位動態以及它在功率合成和束掃描方面的應用,括同步工作條件、穩定條件和相位動態方程等,通過實驗確定了陣列中相鄰單元間耦合參數,並將之運用於有源集成天線二元陣和三元陣的設計,實驗結果與結果吻合較好。
  4. The main research advances can be summarized as follows : ( 1 ) study the signal processing ' s performances and methods of homing torpedo system comprehensively, in order to setting up a corresponding mathematical models ; ( 2 ) analyze the ocean channel ' s effects on the work of homing system, then found some models such as target echo signal, noise ( including background noise, target radiating noise, etc ), ocean reverberation. according to them, simulate the array signal ; ( 3 ) the system structure, every function blocks composing are studied and founded thoroughly. then, discuss methods of signal processing in time domain and airspace domain ; ( 4 ) program the simulation software of torpedo ' s homing system according to the simulation models and flow charts, which connected with torpedo ' s control part

    本文所作的主要工作及研究成果主要有以下幾個方面: ( 1 )對自導工作過程中的信號與信息處的基本與方法進行了較為全面的研究,為建立一個較為完備的自導模擬系統提供了基礎; ( 2 )討了自導系統工作過程中海洋通道對目標回信號與目標輻射噪聲信號等的影響,建立回信號的數學模型、環境場中的噪聲信號模型(括海洋環境噪聲、目標輻射噪聲與魚雷背景噪聲等)與海洋混響模型,模擬產生了聲自導系統基陣接收到的回信號與噪聲信號; ( 3 )深入研究並建立了自導模擬系統的總體框架,給出各個具體功能模塊組成,討了聲自導系統對信號的時域與空域處,並結合模擬程序中陣列信號處模塊,給出固定多通道束形成的模擬實現過程; ( 4 )根據系統的模擬模型與已建立的模擬流程圖編制了通用魚雷模擬器自導系統模擬軟體,通過網路與控制系統相連,組成完整的魚雷模擬器。
  5. The theories and design principles of each circuit of the spwm three - phase frequency inverter experiment unit are in detail introduced in this thesis. at the same time some experiment results are shown that include the output voltage and current waves when the load is in resistivity, inductivity or asynchronous motor

    文中詳細介紹了spwm三相變頻實驗單元所含的各電路環節的基礎及設計過程,並給出了調試結果,如負載為阻性、感性和異步電動機時,實驗單元輸出的電壓和電流形。
  6. To analyze the leucocytes image by using wavelet, we bring forward the idea of detecting leucocytes " karyon. through analyzing deeply, we realize the fast - time leucocytes image detection

    基於小分解的白細胞圖像處,提出了細胞胞核提取的基本思想,進行了深入的研究和實際分析,實現對胞核邊緣快速而有效的提取。
  7. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀,液浮擺式加速度計的工作原和數學模型等作了簡要的介紹,然後確定了以二元調寬脈沖再平衡測試迴路為設計方案,並從控制的角度進行了分析,著重研究了系統中各部分的傳遞函數,利用系統開環傳遞函數分析了系統的穩定性,同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題,並按照系統分析的結果設計了括前置放大、帶通濾、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路,驗證了電路的正確性,最後按照測試系統的要求,採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具,利用該圖形化編程語言完成了測試系統軟體部分的設計,實現了測試功能。
  8. Experimental results show the obvious advantage and robustness of our methods. in this thesis, we study the algorithm of holographic stereogram display that can be implemented using cgh. we discuss the imaging process through capturing sequence parallax images, illuminating hologram by a plane wave creates the volume effect in the observer ' s eyes

    對基於計算機的三維全息成像中的光柵編、解碼進行了研究,在此基礎上,將小變換方法應用到全息顯示中,建立新的變換模式下的光柵編、解碼演算法,計算中採用小分解方法,使全息條紋的計算更加快速、便捷。
  9. The main research works of this dissertation are aimed to design of radar waveform and the application of wavelets in ultra - wide radar, including : the design of a new kind of hybrid radar and the research of time side - lobe suppression for pulse compression, the design of receiver r adio front end in data acquisition of ultra - wide band radar, the time delay estimation based on wavelets ( packet ) analysis

    本文主要進行雷達形設計研究以及研究小在超寬帶雷達中的應用,集中體現在以下幾個方面:一類新的組合雷達形設計及壓縮脈沖時間旁瓣抑制技術研究、超寬帶雷達多通道數據採集方法中前端射頻接收部分的設計及研製、基於小)方法的時延估計方法。
  10. One is the non - orthogonal gabor - daubechies frame, or g - d frame, a complete set of discrete window fourier functions which are constructed by space - shifting and harmonically modulating a gaussian window. although a g - d frame is not an orthogonal basis, it bears considerable advantages for the study of physical problems, especially those related to the wave field extrapolation, due to the optimal localization properties of the gaussian window function under the heisenberg uncertainty principle

    其一為將高斯窗函數經平移和調制而構成的一組窗口富里葉框架( gabor - daubechies框架,或g - d框架)基本函數,另一種為在富里葉分析和小波包理論基礎上發展起來的局部餘弦基函數。
  11. Based on optical waveguide theory and electro - optic effect, the structure of the intensity modulator, fabrication technique, and measurement technology are studied intensively

    研究內容括光、電光效應等基本研究,強度調制器結構的設計、工藝技術研究與設計、測試技術研究。
  12. Biorthogonal multiwavelet packet theory

    雙正交多子波包理論
  13. Orthogonal multiwavelet packet theory

    正交多子波包理論
  14. Acoustic emission and wavelet packet theories are adopted to detect pressure leakage location accurately

    摘要採用聲發射技術與小波包理論相結合的方法對管道泄漏點實現了精確定位。
  15. The theory of wavelet and wavelet packet is simply presented and vibration signal of farm transporter is analyzed by programming with matlab

    摘要介紹了小和小波包理論的基本思想,並用matlab語言編制了處程序對農用運輸車振動信號進行實例分析。
  16. In this paper, the theory of using triangular radar to detect the metallic target is discussed, and the wavelet packet transform and its algorithm are also described in detail

    摘要述了用三角雷達探測地下金屬目標物的原,介紹了小波包理論,給出了小特徵提取的演算法。
  17. In this thesis, the principle of polarized light wave transmit in optical fiber is researched, i. e. principle of ternary optical fiber communication is researched. based on the researches, the construction of ternary codes optical end machine and 3b2t optical end machine used in two - state fiber net are designed. the construction and component of circuits in 3b2t optical ( called sign converter circuit - scc ) are designed particularly, including : the clock synchronization module, the data synchronizing, code converting module, frame managing module and error exam and managing module

    本文研究了線偏光以及在光纖中的傳輸原,研究了三值光通信系統原和器件原;在此基礎上,設計了三值光端機和在現有兩值光纖網中實現三值光通信的3b2t三值光端機的組成結構,詳細設計了3b2t三值光端機的電路組成部分(稱為電信號變換電路scc ) ,括:時鐘同步模塊、數據同步模塊、碼元變換模塊、幀處模塊及差錯檢測和處模塊;而且在三值光纖通信基礎上,提出了四值光通信的原和偏分復用的實用化方法。
  18. Furthermore, analytical solutions of optical waveguide of double cladding that the refractive index of core is lower than the refractive index of inner cladding were studied with wave theory, the expressions of electromagnetic field and modal characteristic equations were derived

    並且利用對一種雙層低折射率芯的光導進行了解析求解,得到了模式場精確解及模式特徵方程。
  19. Being a new mechanism of typhoon intensity variation including intensity mutation and a leading task in typhoon dynamics, vortex rossby waves ( referred as vrw hereafter ) theory was studied in depth by professor montgomery and his students of colorado university

    渦旋rossby( vrw )是臺風強度變化括強度突變的一種新機制,是目前臺風動力學的一個前沿課題。美國科州大學montgomery教授和他的學生們對此進行了深入的研究。
  20. Owing to the limitation of the ray method in analyzing the field distribution and transmit power of optical waves in fibers we decide to apply waveguide theory for analyzing dcf with truncated inner cladding in an at tempt to find out the divergences of different types of dcf with truncated inner cladding in absorption efficiency in unit distance

    由於射線法在分析光在光纖中的場分佈、傳播功率等情況時有其局限性,因此,文章改用對缺陷型內層雙層光纖進行分析,試圖找出不同類型的缺陷型內層雙層光纖單位距離內吸收效率的差異。
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