色散理論 的英文怎麼說
中文拼音 [shǎisǎnlǐlún]
色散理論
英文
dispersion theory-
Vector analysis for chromatic dispersion character - ristics of two - dimensionally periodic structure
二維周期結構色散特性的矢量理論分析Shortwave channel is time varying transmission channel. it has dispersion in frequency and time domains. this characteristics hinds the data transmi - ssion at high speed and the correction of received data. in this dissertation i have analyzed the statistic characteristic of shortwa - ve channel, established the model of shortwave channel and simulated the rayl eigh fading distribution. the technology of spreading spetrum has been proved that it has the capability for anti - multipath and discerning multipath
在短波通信中,由於通道的時間色散和頻率色散,引起多徑展寬和多徑衰落,前者限制了數據的傳輸速率,後者造成短波數據通信中出現突發錯誤,為了解決多徑效應對短波通信的影響,本文所做工作如下:首先詳細分析了短波通道的統計特性,建立其數學模型;其次分析了擴頻通信的特點,從理論上證明擴頻技術不僅具有抗多徑干擾能力,而且具有分離多徑的能力;介紹了傳統的rake分集合併技術的特點。The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro
激光陀螺的核心部件為he - ne環形激光器,而掌握光與介質的相互作用理論是研究激光器的關鍵,採用拉姆半經典理論為主,在密度矩陣理論的基礎上,推導環形諧振腔中描述he - ne氣體增益介質原子運動的光學布洛赫方程,運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組,在此基礎上,運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ,對激光陀螺中的介質增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究,並且運用全量子理論,對激光工作原理進行分析,得出二能級系統單模輻射場的光子數密度分佈,得出激光場的光子統計分佈,模擬激光場的動態建立過程。Using the semiclassical theory, we calculate the correction of the detuning to the absorption and dispersion, and we investigate the impact of the one - photon detuning under the exact two - photon resonance to large kerr nonlinearity and photon switching based eit
我們利用半經典理論計算失諧量對吸收和色散的修正,分析雙光子共振條件下的單光子失諧量對基於eit的強kerr效應和光子開關行為的作用。This thesis mainly discusses the devices based on crystal optics and polarization, which includes polarization interference filter ( pif ) used in the separation and combination systems of lcos, achromatic wave plates based on the similar principal of pif and the crystal polarization beam splitter
本論文將主要討論晶體偏振光學器件:用於lcos分合色的偏振干涉濾光片( pif ) ,基於pif原理的消色散延遲片和偏振分束器。4. the " hot " dispersion equation of the coaxial ridge - disk - loaded cylindrical waveguide twt with an annular electron beam can be firstly obtained according to self - consistent field theory
四、引入薄環形電子注,首次建立了脊加載同軸膜片圓波導的注波互作用線性理論,得到小信號條件下的色散方程。The tm mode dispersion equation of the coaxial bwo in the infinite guiding - magnetic field is derived and solved numerically. the dispersion curve, operating frequency, and the growth rate are obtained
採用線性理論推導了無窮大引導磁場下的同軸tm模式色散關系式,並編程數值求解了一定條件下的色散曲線、時間增長率、空間增長率。Through optical analysis, it indicates that scattering of micro - inclusions in the sapphire to light reduces the intensities of transmitted and internal reflected light, resulting in decreasing in transparency and brilliance of colour
用光學理論分析表明,藍寶石包裹體對光的散射作用使寶石的透射光和內反射光強度減弱,從而降低了寶石的透明度和顏色明度。2. on the degeneracy properties in the dispersion relation of photonic crystal it is an intractable problem to explain the dispersion relation and degeneracy properties in it for photonic crystals
光子晶體色散關系中簡並結構的理論研究對于光子晶體的頻帶結構和頻帶結構中的簡並一直是一個備受關注的問題。The main contents are as follows : ( 1 ) by employing the direct method, the soliton periodic amplification system in optical fiber link with loss is considered, and the adiabatic solution ( slowly varying portion ) and first - order correction ( rapidly varying portion ) for a single soliton case are presented
本文的主要內容如下: ( 1 )利用直接擾動方法對周期放大系統進行了理論分析,給出孤子周期放大系統的絕熱近似解和一級修正解的積分表達式,結果分析表明孤子在放大過程中一部分能量以色散波的形式流失,而這一色散波主要由孤子周期放大系統的一級修正解來刻畫。The vector diffraction theory analysis of chromatic dispersion characteristics of phase grating
位相光柵色散特性的矢量衍射理論分析The optimization theory, optimum dispersion value, dispersion direction and the factors affecting on the imaging quality of planar image in wavelength multiplexing optical fiber image transmission system was deeply and th eoretically analyzed as the emphases in this article, and at the same time through the development of true optical fiber image transmission system ( optical fiber periscope ), the studying of making the image quality optimization of optical fiber image transmission system being useable and been used in engineering was completed
其中,重點對波分復用光纖傳像系統二維圖像的像質優化機理、最佳色散量與最佳色散方向的選擇,以及影響系統成像效果的各種主要因素進行了深入的理論分析;並結合實際光纖望遠系統? ?光纖潛望鏡的研製,完成了光纖傳像系統像質優化的實用化、工程化實現研究。We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam, off axis phase matching, divergence angle of pumping, time above threshold, high gain coefficient of nlo crystal, fluctuate of cavitylength, spontaneous radiation, according to the momentum and energy conversion laws, and the sellmeier equations of the clbo, we calculated curves of the type - i and type - ii compared with the bbo ' s
根據能量動量守恆關系和clbo的色散方程,詳細分析了由於泵浦光的線寬、泵浦光偏軸泵浦、泵浦光的發散角、泵浦光功率超過參量光振蕩閾值一定倍數、高增益系數、有效腔長波動以及自發輻射引起的參量光線寬,並得到了與bbo晶體在類、類相位匹配下比較的理論曲線。Expressions in three kinds of perfectly matched layer ( pml ) absorbing boundary conditions is also given. second, the numerical theories of the auxiliary fields fdtd method is studied, including the stability of the differential equations and the numerical dispersive relationship. the stability of two kinds of differential formulations and three kinds of pml is compared, using a straight method depending on the pmax - t graph
更進一步,研究了輔助場fdtd方法的數值理論,對其微分方程、差代方程的穩定性進行了分析,比較了有耗媒質中的兩種差分格式和三種理想匹配層中的差分格式的穩定性,提出了一種通過p _ ( max ) - t曲線判定穩定性並求出穩定性條件的直觀方法,並導出了該方法的色散關系式。The magnetic distribution of a - magnet is presented by analytic way and numeric simulation way. the single particle movement is studied in a - magnet and the movement rule of charged particle in ideal four poles magnetic field also is obtained. quantificational results of the incidence angle, trajectory length and the maximal distance in x direction are presented for ideal trajectory, and the equation indicates some important characters of a - magnet
論文對-磁鐵的有關物理問題進行了較為詳細的論述,從解析形式和數值模擬兩個方面給出了-磁鐵的磁場分佈,對單個粒子在-磁鐵中的運動進行了分析,利用數值求解方法研究了帶電粒子在理想四極磁場中的運動規律,提出了歸一化運動方程和理想軌道等物理概念,定量給出了消色散的入射角、軌道長度和x方向最大距離的解析表達式。In chapter 4, we study nonlinear theory of the open v - type system with two - color incoherent pump. in this chapter, we discuss the conditions for the onset of lwi and the stability of the system in the limit of strong driving field, and the effect of incoherent pump rate rt on the gain, dispersion and population differences. we also discuss the effect of nonlinearities and the effect of pumping rate threshold of the pumping field
接著第四章討論雙色非相干泵浦系統的非線性理論,分析了強驅動場情況下的lwi產生的條件和穩定性、非相干泵浦速率r ~ 1對增益、色散和粒子數差的影響;討論了該系統的非線性效應和非線性對非相干泵浦速率r ~ 1與r閾值關系的影響。The imaging theories of doe are analysed in this paper, these theories mainly involved the dispersive theory and imaging spectral theory
本文對doe的成像理論進行分析,其中主要涉及到doe的色散理論以及doe的成像光譜理論。In this article, at first, the dispersion conception and generation reason are explained, and the dispersion influences that are brought about in the analog and digital signal transmission in optical fiber communication are accounted for. next, the dispersion theory of optical fiber is discussed in detail and several useful technologies of dispersion compensation are introduced
論文首先從光纖色散的概念和起因入手,然後從數字和模擬信號傳輸兩個方面,說明了光纖色散對通信的影響,對光纖色散理論作了詳細地闡述和分析,並介紹了幾種已實用的色散補償技術。The simulation results have shown that sigvd of the temporal part is observed when the diffraction - free distance is longer than the dispersion length of sigvd. sigvd can be used to compensate the dispersion of medium, and a diffraction - free and quasi - dispersion - free pulsed beam, similar to a spatiotemporal soliton, can be produced in a dispersion medium
數值模擬的結果表明,只要相應的衍射距離大於空間誘導色散的距離,空間誘導色散理論可以很好的描述脈沖的演化過程;利用空間誘導色散可以補償介質色散,從而可以在色散介質中實現無衍射無色散的類時空孤子的傳輸。The thesis indicates the existed problems of urban design by analyzing background and actuality for high - tech industrial development zone along the fringe area of big city. in order to sum up the principia of urban design, the thesis study the main factors : the historic features of big city and the characters of key elements of zone, which is based on the theories of city image and technologic innovation and convergence and diffusion
其次,論文從大城市的歷史文化特色入手,針對影響開發區城市設計的主要因素展開分析,討論了開發區內部環境要素的特性,並提煉出開發區城市設計的風貌特色要素;進而通過對相應的認知意象理論、技術創新與集聚擴散理論的整合研究,初步總結出大城市邊緣型高技術產業開發區城市設計的基本原則。分享友人