近似方位 的英文怎麼說

中文拼音 [jìnsìfāngwèi]
近似方位 英文
apparent azimuth
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 近似 : approximate; similar; approach; approximation; roughness; propinquity
  • 方位 : position; bearing; direction; points of the compass; placement
  1. This dissertation emphasizes on the creation of image space, the author present a display system in which screen moves with a sinusoidal velocity profile to create image space. this paper uses linear approximation to make the system display homogeneous graphic and analyzes worst - case positional error due to linear approximation

    本論文重點分析了顯示單元中成像空間的構造，提出屏幕按正弦曲線運動的方式來構造成像空間，用線性近似的方法得到均勻的圖像，並分析了由於線性近似帶來的最大屏幕位置誤差。
  2. First, the nonlinear ls problem without constraint is converted to that subjected to inequality constraints by putting constraints on the do as of the received signals and toas of the first arrived signal with geometrically based single - bounce ( gbsb ) statistical channel model and cost - 207 model. then, a penalty function is used in the estimation of ms position

    首先，用基於幾何結構的單次反射圓模型和cost - 207模型，對期望定位用戶的各條多徑信號的波達方向和最先到達多徑信號的時間進行約束，將傳統的解無約束的非線性最小二乘定位問題或近似線性最小二乘定位問題轉化為解不等式約束的非線性最小二乘定位問題；然後，用內點罰函數法估計移動臺的位置。
  3. The fundamental ideas and methods of this paper are also illuminated in this chapter. in chapter two, a one - dimensional and semi - closed shallow sea mode is studied. the approximate analytical expressions of the water level at the top of the bay induced by the nonlinear interaction between the storm surges and the astronomical tides are obtained by using the perturbation method

    在第二章里，研究了一維半封閉水域中的非定常風暴潮與天文潮非線性相互作用的問題，用攝動方法求出了具有實際意義的海灣頂部增水水位的一階近似解析表達式，並給出了增水過程曲線。
  4. The united signal for the isar signal processing is called the cross - range dimension signal. the cross - range dimension signal of the target with nearly tangent motion is a linear frequency modulated signal

    由推導的準切向運動目標的方位向信號的相位表示式可以看出，此信號近似為線性調頻信號。
  5. 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。
  6. Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results

    文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比：電性能相當；波導管結構更加簡單，容易加工，便於安裝.文中給出圓突-矩形波導中主模場，圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣，縫隙電壓相位為同相分佈，輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖，理論與實驗相吻合
  7. At the other hand, we can perform the rrpa calculation with the continuum replaced by a set of outgoing single particle resonances, it indicates that the resonances in the continuum play an important role in the description of nuclear dynamical processes, such as collective giant resonances. energies, widths and wave functions of the single particle resonant continuum are determined by solving scattering states of the dirac equation with proper asymptotic conditions for the continuous spectrum in the r ' elativistic mean field theory. the relativistic regular and irregular coulomb wave functions are calculated numerically

    在進行相對論無規位相近似計算時將連續譜中所有的正能態用單粒子共振態來代替，並且在計算中採用單粒子共振態的真實寬度，利用這種方法我們計算了核的同位旋標量巨八極共振響應函數，並且和考慮了連續譜中所有正能態貢獻的結果進行比較，計算結果表明，連續譜中只考慮單粒子共振態對核的集體激發的貢獻時，給出的響應函數基本上能夠重現考慮了所有正能態貢獻時的計算結果，這說明了在核的集體激發中，連續譜中主要是單粒子共振態的貢獻。
  8. The relativistic random phase approximation ( rrpa ) is a relativistic extension of the random phase approximation for studying microscopically nuclear dynamical excitations and giant resonances. the consistency of rrpa calculations requires two aspects : first, it demands that the relativistic mean - field wave " function of nucleus and the particle - hole residual interactions in the rrpa are calculated in a same effective lagrangian. second, the consistent treatment of rrpa within rmf approximation requires the configurations including not only the pairs formed from the occupied fermi states and unoccupied stat es but also the pairs formed from the dirac states and occupied fermi states

    自洽的相對論無規位相近似理論的自洽性要求有兩方面的內容：第一，描述原子核的激發態性質和基態性質時必須從同一個有效的拉矢量出發；第二，相對論無規位相近似計算，不但要考慮正能的粒子-空穴組態的貢獻，而且還要考慮從fermi海核子態到dirac海負能核子態形成的對激發的貢獻。
  9. We have developed the theory of boundary shielding approximation of electric polarization, from which the values of spontaneous polarization of some typical ferroelectric materials can be derived. the shielded charges in ferroelectricity are in the state of surface bound polaron - dipole whose creation and annihilation must span a potential barrier. by introducing statistical method, four types of typical electric hysteresis loops of some common crystals and ceramics have been given, which are well consistent with the experimental results

    利用電極化的邊界屏蔽近似，可計算出一些典型鐵電單晶的自發極化強度.鐵電屏蔽電荷處于表面束縛極化子偶狀態，其產生和湮沒要跨越位壘.由統計方法給出的一些常見晶體和陶瓷的四種典型電滯回線形狀，和實驗觀察到的結果一致
  10. The numerical results indicate that the deformation within the solid inner core is very small. however, in the fluid outer core, the changes of the displacement with relatively low spherical harmonic degree ( n < 10 ) is very complicated via the radius, due to the resonance near the eigenfrequenies of the core long - period oscillations. while the spherical harmonic degree of the loading is larger than 10, the deformation and the gravitational perturbation in the core are very small, and the earth ' s deformation response is dominantly represented as the radial displacement in the elastic mantle

    研究了地球在日月引潮力和表面負荷作用下的形變特徵，數值計算結果表明，在固體內核中的形變很小，由於在長周期核模本徵頻率附近的共振，液核中低階（ n 10 ）位移隨半徑的變化非常復雜，當負荷階數超過10時，地核中的形變和擾動位都很小，地球的響應主要表現為彈性地幔中的徑向位移，且隨深度增加急劇減弱，地表負荷love數與信號頻率的依賴關系很弱，給出了體潮love數計算的一種有效的近似處理方案。
  11. From the study results it is showed that turret hole position near the forward of the midship has less effect to the ship girder strength and it is more reasonable using probabilty statistics method to estimate the extreme value of wave bending moment, by which the first approximate value of hull midship section modulus can be determined

    研究結果表明：轉塔開孔位置在舯前附近對船體總強度影響不大；波浪彎矩極值用概率統計方法估算更為合理；船體結構剖面模數的第一近似值可用波浪彎矩設計極值等來確定。
  12. But difficulty in maths will come forth when meeting high spin particles if we using such method. on base of the characteristic of energy space, we obtained the wavefunctions and geometric phase by the trial function method in this paper. the berry phase of the system are also obtained after an evolution period

    文中在絕熱近似下根據自旋粒子能級間隔特點用嘗試波函數法求出了旋轉磁場中高自旋粒子系統的波函數及幾何相位，解決了用一般方法求解時出現高階微分方程的困難。
  13. The basic thought is to divide the cities which are close to each other into a group ( physical area ) by applying sorting neural network, find out the optimal path by the improved hnn, and then calculate the local optimal path by using the same method, and finally get the whole optimal path, which are described as following : a assembly s of cities is grouped into some subsets according to their physical location and we can get, and then get the optimal, path of tsp of s = { s, i = 1, 2, n } through the given method, as well as the st

    基本思想是利用聚類神經網路先把地理位置上相互靠近的城市劃分為一個集體單位（一個物理區域） ，用改進的hopfield神經網路演算法求解各個區域間的最優（或近似最優）路徑，然後再在每一個區域內部用同樣的方法來求解其局部的最優（或近似最優）路徑，這樣可以最終得到全局的最優（或近似最優）解。描述如下：設有城市集合s ，按城市的地理位置把s劃分為若干子摘要2集，得s ijs ， ，其中廠s ； d ， i一口求得集合i叫s s ； i習， 2 ， … n的tsp最優路徑，再依次求得子集s ；內部的tsp最優路徑，即得最終優化路徑m一） s一） …一寧s ； di
  14. Combining the favorable capability of ebcot and characteristic of multi - wavelet ’ s coefficients, this article puts forward an integrated filter and pretreatment method based on approximated stairs. it processes the vector quantification of multi - wavelet ’ s coefficients and carries out the mix - scan compression arithmetic towards bit planes of ebcot

    本文結合ebcot的良好性能和多小波變換系數特性，提出一種結合濾波器和基於近似階的預處理方法，並對多小波變換系數進行重新排列和量化處理，對ebcot中位平面進行混合掃描方法相結合的壓縮演算法。
  15. Up to now, the method, we used in studying the properties of collective multipole excitations of nuclei, treat the continuum by a discretization procedure with expanding wave functions in a harmonic oscillator basis. this approximation can be justified for very narrow resonances and gives a global description of the contributions from the continuum. a complete treatment of the continuum can be carried out by the continuum rrpa with a green " s function method

    為了解決這些問題，需要改進相對論無規位相近似方法對z連續態的處理，採用連續相對論無規位相近似計算，通過格林函數方法可以嚴格處理連續態在核的集體激發中的貢獻，並用來描述核的集體巨共振性質，包括核的巨共振能量、巨共振峰的強度以及巨共振寬度等重要的物理量。
  16. The best combination of size parameters of supported domain and sub - domain is obtained. upwind scheme is developed to eliminate the instability of solutions obtained by using mlpg approach. 2

    分析了試函數構造的近似方法、節點和輔助點數量、多項式基函數位數和支撐域尺度對數值模擬結果的影響。
  17. The main achievement of the paper is that the nnlse is simplified to a linear equation. it is found that we can controll a weak beam ' s phase to experience a very large phase shift within a rather short propagation distance by modulating the input power of a stronger soliton beam

    本論文的主要貢獻是：把光束的傳輸方程nnlse簡化成一線性形式的近似方程，發現可以通過調節強孤子光束的功率來控制另一弱光的相位並能使之在極短的傳輸距離內產生大的相移。
  18. Such limit is not due to the method itself, but is due to the limits of the speed and memory of computers. at present, we mainly use the high - frequency approximate method to analyze the electrical - large size target whose shape is relatively regular

    矩量法不適于分析電大尺寸的物體，這種限制不是由於方法本身，而是碩士學位論文凡1入ster 』 5th卜515由於計算機速度與存儲能力的限制。目前主要採用高頻近似方法來研究電尺寸較大而形狀相對規則的目標。
  19. The stress and local stability constraints are transformed into movable lower bounds of sizes. an inverse variable xt = ? is inducted, and the objective function is expanded as second order taylor approximation while the displacement constriction is expanded as first order taylor approximation. the lemke algorithm is used to get the final design result

    把復雜的應力約束和局部穩定約束轉化為動態尺寸約束，引入倒變量x _ i 1 / a _ i將目標函數展開為二階近似，將位移約束用莫爾積分化為一階近似，用對偶規劃方法將原問題化為等價的二次規劃問題，調用lemke演算法，求得最優設計結果。
  20. In chapter 4, with the dissipation approximation, the dynamics behaviors of the phase of the field are studied in terms of phase theory presented by pegg and barnett. the probability distribution of the phase and the phase fluctuation are discussed during the single photon process

    互eldand比eatom麗比anin亡en成ty - dop即den亡co即1in第四章利用耗散近似方法，運用pegg - barnett厄米位相理論研究光場的位相動力學性質
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