標量波動方程 的英文怎麼說

中文拼音 [biāoliángbōdòngfāngchéng]
標量波動方程 英文
scalar wave equation
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 波 : 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...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 波動 : 1 （不穩定） undulate; fluctuate; unsettle; surge; rise and fall 2 [物理學] wave （motion）; wave...
  1. Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained

    首先在第三章提出的目標運動模型的基礎上建立了系統狀態方程;其次簡要分析了衛星導航系統中的各類誤差，建立了基於偽距觀測量的系統觀測模型;第四節利用yuma格式歷書數據模擬了未受攝動影響的衛星軌道，並在此基礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和比較，先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬比較，然後針對外場試驗，對非線性濾波獲得的定位結果與商業軟體進行了分析比較，並得出結論。
  2. A general solution to the schrsdinger equation about the motion of the entangled atom of two cases is obtained. subsequently, the wave functions in momentum and coordinate spaces are given according to the atoms " ini initial nd next, the dynamic properties of the two - atom entangled system are manifested

    我們首先寫出兩種情況下系統的哈密頓量並解出薛定諤方程，可得到兩原子糾纏系統波函數的一般解，然後根據原子的初始條件得到了波函數在動量表象和坐標表象的特解。
  3. 4. the dissertation studies in - depth the multi - aperture sar mtdi based on along - track interferometry ( ati ). it presents and describes the detecting processing in sar image domain using double apertures and analyzes the influence of all kinds of factors including ground clutter, noise, signal - to - clutter, range velocity, multi - look processing and etc on the detection performance

    4 、深入研究了基於沿跡干涉釁1 ）技術的多孔徑sar系統地面動目標檢測和成像方法，給出了採用ati方法對兩幅sar復圖像進行慢速目標檢測的完整過程，詳細分析了各種因素如雜波、噪聲、目標信雜比、目標速度及多視處理等對檢測性能的影響，並通過大量的模擬給予驗證。
  4. Based on the semi - vector wave equation under cylindrical coordinate system, the mode distribution and complex propagation constant in bent waveguides were computed by a finite difference method with perfectly matched layer ( pml ) boundary condition

    摘要以柱坐標下的半矢量波動方程為基礎，採用基於完美匹配層（ pml ）邊界條件的有限差分方法，對彎曲波導進行模式求解，進而得到波導彎曲引起的輻射損耗。
  5. An on - line minimum - variance estimator was developed for thrust acceleration applied to orbit transfer using discrete - time radar measurements. the mass - flow - rate of propellant was selected as a state variant, which was estimated by employing an integral state model and ekf filter. the variation equations for measurement vector to mass - flow - rate have been established to linearize the discrete - time measurement equations. the algorithm has applied successfully to maneuver process in commanding satellite into geo - stationary orbit. the results show that the algorithm developed here can monitor and determine whether engine works well or failure precisely and quickly during orbit transfer process

    飛行器軌道機動過程中，為跟蹤、定位機動目標和干預機動控制過程，需要統計處理離散的雷達觀測量實時估計推進發動機的推力，進而確定飛行器的瞬時軌道參數.本文所述演算法是該工程問題的探討和解決方案.文章建立了軌道機動過程中連續變質量運動模型和離散雷達量測模型，推進發動機的質量秒耗量作為表徵推力加速度的一個近似常量，應用擴展卡爾曼濾波對離散的雷達測量數據進行順序統計處理給出秒耗量的最小方差估計;文章詳細地推導了線性化量測模型的變分方程和觀測矩陣;模擬結果表明該演算法能快速、準確地估計推進發動機的質量秒耗量和向機動目標施加的實際推力
  6. We practically applied the wnnd scheme to solve scalar conservation laws and euler system in one dimension and n - s equations in two and three dimensions. the numerical results of wnnd schemes indicated good shock transitions without any noticeable oscillations and uniformly high accuracy in smooth regions. the wnnd scheme could catch the detail o f the flow field more particularly

    本文應用wnnd格式數值模擬求解了一維標量方程、一維歐拉方程、二維n ? s方程和三維n ? s方程，數值結果表明， wnnd格式在激波附近基本無波動，且在解的光滑區保持空間的統一高階精度，較之nnd格式， wnnd格式能夠更高解析度的捕捉到流場細節。
  7. Scalar wave equation

    標量波動方程
  8. ( 3 ) the symplectic integrator method is applied to time evolution of the scalar wave equation

    （ 3 ）將辛演算法運用到標量波動方程的時域模擬中。
  9. Secondly, the content, evaluating guideline system of the food security cost were discussed, and the quantitative analysis of the food security cost at the view point of center finance expend from reform and opening of china was given. threely, the influnce factors of chinese food security under wto were analyzed thoroughly, and the new stratagem of food security - - big food and little grain ration was proposed, and the food security and its types were discussed. the article thought that ensureing the food security hi the reason cost is the process both food security control was improved and microcosmic foundation was intensified increasingly, that the moderation scale of chinese food security repertory, that the rules, which includes negative correlation alteration of agriculture proportion and modern, etc. must be followed, and that the project of water from south to north must give attention to two or more things water need of food produce ability and output

    認為中國糧食安全與成本優化的過程是一個不斷改進糧食安全調控工作的過程，也是使微觀基礎得以強化的過程；按照社會可承受2的糧食可供波動與控制糧食儲備成本的標準計算，中國糧食安全儲備的適度規模為48872千噸；應根據「農業比重與農業現代化的負相關變動」 、 「比較優勢與農業保護的平衡運用」 、 「大糧食消費與增值的備擇性」 、 「產業結構調整與糧食產能保護的兼容性」等要求建立與實施旨在謀求糧食安全與產業結構調整協調的評價指標體系；北方地區對中國糧食生產與增產具有很強的正相關性，然而它正遭受著越來越嚴重的水缺乏的影響；南水北調工程必須兼顧糧食產能的用水需要，以有效緩解糧食需求的相對穩定與糧食產量波動相對較大之間的矛盾，從而達到減少儲備、節約成本的目的。
  10. Based on iec standards, the methods of designing square demodulator, bandpass - weighted filter, and smoothing filter are presented. besides, the signal conditioning circuits and online statistical analysis methods of instantaneous flicker value are given. matlab simulink is also used to simulate the measuring process of voltage fluctuation and flcker

    基於iec標準要求，設計了實現數字式電壓閃變測量的平方解調器、帶通加權濾波器、平滑濾波器等各環節，給出了信號調理電路和瞬時閃變值在線統計分析方法，並應用matlab系統模擬工具simulink對電壓波動和閃變測量全過程進行了數字化模擬。
  11. Since there are a lot of periodic non - stationary stochastic processes, i combine the kalman filtering and multiresolution analysis methods, and propose the wavelet - kalman filtering hybrid estimating and forecasting method. this method has the real - time, recursion and multiresolution characteristics. in this paper, using this method, i realize the real - time tracking and dynamic multistep forecasting in one cycle

    針對自然、社會和經濟等環境中存在有大量周期性的非平穩隨機過程，我們將kf方法和多尺度分析方法相結合，提出了既具有實時性和遞歸性又具有多尺度分析能力的小波?卡爾曼濾波混合估計與預報方法，應用此方法可實現周期內對目標狀態的實時跟蹤估計和動態多步預報。
  12. This paper ' s thinking is the following : first, historic origin and background of economic growth quality theory is studied, based on related economic development and growth theory esp. the sustainable development theory ; then, set up some index system for evaluating industrial economic growth quality by index - designing principles ; thirdly, do positive study on lanzhou industrial economic growth from the 4 aspects of economic structure, economic effect, economic fluctuation and economic progress degree of lanzhou industry, and do overall evaluation. lastly, this paper puts forwards to some thinking and countermeasures for improvement

    本文的基本思路是：首先，以經濟增長理論和經濟發展理論特別是可持續發展理論為基礎考察經濟增長質量的理論淵源與背景；其次，以指標體系設計原則為指導構建工業經濟增長質量評價指標體系；再次，從工業經濟結構、工業經濟效益、工業經濟波動和工業文明進步程度4個方面對蘭州市工業經濟增長質量加以實證分析，並進行總體評價；最後，對改善蘭州市工業經濟增長質量提出總體對策思路。
  13. To analyze conveniently, analysis personnel regularity need to make the operation of background color filling, anode 、 cathode filling, gradual change filling of anode and cathode to eliminate burr phenomena and mosaic phenomena during the filling process. earthquake interpret deal with a lot of data, a mass of proportion operation, coordinate conversion and coordinate mapping must be dong in the plot process, it may frequently appears the phenomena of memory deficiency, graphics refurbish in low speed, graphics overlap and twinkle, so it make use of the technique of memory mapping document, memory dc plotting and local plotting twice and so on to implement quickly and top - quality plotting of lots of gigantic graphics and implement continuous and rolling display

    分析人員為了方便分析，也經常需要把波形進行底圖彩色填充，正級、負級填充，正負極的彩色漸變填充，並消除在填充過程中出現的毛刺現象、馬賽克現象。因地震解釋所涉及的數據量很大，在繪圖過程中要進行大量的比例運算、坐標轉換及坐標映射等，就會經常出現內存不足、圖形刷新速度過慢、圖形重疊和閃爍等現象，所以需要採用內存映射文件、內存dc繪圖、局部重繪等技術，實現大數據量巨幅圖形的快速度、高質量繪制以及圖形的連續滾動顯示。
  14. Firstly, according to the characteristic that the doppler frequency shift signal can be approximated as a single sinusoid signal, the extended sinusoid signal retrieval ( pisarenko and esprit ) methods are presented and signal state and measurement formulations are developed, so the kalman filter recursive method is got. the brief introduction of low velocity moving target doppler frequency shift signal wigner - ville transformation and wavelet transformation expression are presented in this paper. secondly, because the clutter is gaussian distribution, cumement and high - order spectrum based methods are presented and the simulation results prove their good performance to suppress gaussian clutter in low velocity moving target doppler frequency shift signal processing

    一個方面是根據低速目標的多普勒信號可簡化為單一正弦波形式這一特點，得到了擴展的高斯色噪聲背景下的諧波恢復演算法，即高斯色噪聲中的pisarenko諧波恢復法和旋轉因子不變法（ esprit ） ；並推導了信號的狀態方程和觀測方程，進而得到基於卡爾曼濾波的遞推演算法對信號進行提取；本文還簡單的介紹了低速運動目標的多普勒頻移信號的wigner - ville變換與小波變換；另一個方面是針對雜波服從高斯分佈這一特點，提出了對接收信號求累積量和高階譜來對高斯雜波進行抑制。
  15. Thirdly, the short - term and long - term financial early - warning system is established based on the financial statements of marketing corporation in electric power, medicine and general merchandise. systematic method, efficiency coefficient method and linear regression method are applied in the short - term financial early - warning system from the aspect of cash flow, operating performance and function model ; growth periods method and management grade method are applied in the long - term financial earl y - warning system from the aspect of growing capability and financial stratagem. finally, lots of examples are given to validate these early - warning models, and some countermeasures are discussed for avoiding and eliminating the distress of enterprise

    首先，介紹了企業財務預警的概念、功能和國內外的研究現狀；其次，闡明了企業財務預警的原理、程序和方法；再次，它以電力、醫藥和百貨行業的上市公司報表為資料，按照指標選取、標準判斷、警限設置和警度預報的步驟，從企業的現金流量、財務業績和函數模型三方面，分別運用系統化方法、功效系數法和線性回歸法構建了企業短期財務預警系統，從企業的成長能力和財務戰略兩方面，分別運用周期波動法和管理評分法構建了企業長期財務預警系統；最後，舉了大量實例對構建的各個預警模型進行考證，並從財務角度探討了企業的防警和排警對策。
  16. The methods of data association and tracking beginning and ending to single and multiple targets tracking in the multi - echo environment is listed. at the end of the thesis, a method is introduced, which is that based on the most closed principle, without the chosen echo, the current forecasting values added yawp based upon the former state values is considered as the target state estimated value. the value is an input of observation equation, the output of the observation equation is considered a chosen echo. and the method is validated in the simulation results

    針對多目標跟蹤問題，首先對多目標跟蹤的原理和跟蹤門的形成方法進行了概述，並對多回波環境下單目標跟蹤和多目標跟蹤的常用的數據關聯方法和跟蹤起始、跟蹤終結方法進行了介紹，在本文的後半部分，對多目標的運動狀態進行了模擬研究，提出了一種目標狀態估計方法，該種方法的思想是當前時刻如果目標跟蹤門內沒有所期望的候選回波，首先計算出目標在前一時刻的運動狀態下對當前時刻的預測值，並將該值疊加上系統噪聲作為量測方程輸入值，然後將觀測值作為候選回波對目標進行狀態估計。
  17. It shows that there is cointegration relationship between the economic growth rate and the m1 increase rate. then by using the cointegration, granger causality method, impulse - response analysis, vector error correction model with markov regime switching to test the equilibrium relationship in long run and the short fluctuation pattern in short run between the real output and m1 increase rate, it shows that monetary supply can affect the macroeconomic effectively, and the interest rate and stock market value can not affect the macroeconomic effectively

    本文研究了經濟增長與貨幣供給量、利率、股票市場等貨幣中介指標的關系，得出經濟增長率與m1增長率具有協整關系的結論，在此基礎上使用協整分析、 granger因果關系檢驗、脈沖響應分析、具有markov區制轉移的向量誤差修正模型等最新的經濟計量方法，描述和檢驗了中國經濟周期波動過程中實際產出與貨幣供應量變動的長期均衡關系和短期波動模式。
  18. ( 2 ) a method of regarding the target speed constraints as additional measures and addsing it to measure equation is presented, the constraints intensity is decided by noise variance. it can improve the location precision of the modified gain extended kalman filter

    2給出一種把運動目標（敵艦艇）的航速約束當作增加的測量值加入到測量方程的方法，約束的強度由約束條件的噪聲方差確定，可提高修正增益推廣卡爾曼濾波定位演算法的定位精度。
  19. Based on the time difference of arrival in time range and the direction of arrival of the emitter in space range, passive localization by single station is practicable, and also the localization of maneuvering target is practicable with the mgekf algorithm

    在建立目標機動模型與測量方程的基礎上，運用修正增益擴展卡爾曼濾波（ mgekf ）演算法，實現對機動目標進行定位與跟蹤。
分享友人
分享到 Line

分享到臉書