azimuth method 中文意思是什麼

azimuth method 解釋
方位角法
  • azimuth : n. 1. 方位(角)。2. 【天文學】地平經度。
  • method : n 1 方法,方式;順序。2 (思想、言談上的)條理,規律,秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. Besides, the paper presents a simple but useful method of isoline labeling, azimuth angle judgement algorithm

    在等值線標注部分,採用簡單實用的向量判斷法,確定標注的位置。
  2. In the stage of the sun and the moon in sight, azimuth of the sun, the earth and the moon in the spacecraft body coordinate system is simulated. combining the simulated azimuth with the ephemeris of the sun and the moon, the state equation and observation equation are modeled. the initial orbital parameters calculated by least square method are used in orbit state equation to predict spacecraft state and to realize autonomous navigation

    在日月可見階段,模擬日、地、月敏感器測量信息,即日、地、月在航天器本體坐標系下的方位信息,結合日月星歷,建立狀態方程及觀測方程,通過最小二乘法得到歷元時刻的軌道狀態初始值,將其代入軌道狀態方程進行自主導航。
  3. In order to improve the efficiency of classification based on feature matching, the method of azimuth estimation from sar image is studied. a method of target ' s azimuth estimation from sar image using peak featur e based on linear regression is proposed, besides goodish estimation accuracy and high computation efficiency, it can also provide the confidence interval of the estimation, which can meet the need of model - based sar atr system that uses feature very well

    為了提高基於特徵匹配的saratr系統的分類效率,論文進一步研究了sar圖像目標方位角估計方法,提出了一種利用峰值特徵基於線性回歸的sar目標方位角估計方法,該方法除了具有計算速度快、估計精度較高的特點之外,還能在估計方位角的同時,給出該估計的置信區間,從而能更好地滿足利用特徵基於模型saratr系統的需要。
  4. 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。
  5. Abstract : an easy method for determining the lateral fold number of 3 - d seismic swath is presented. it is described in details that the non - vertical time error and selection method of vertical line direction. based on existing conditions of 3 - d seismic data acquisition in coal field, an assumption of 3 - d broad azimuth data acquisition is provided to remove the disadvantages of non - uniform azimuth distributions from old observation system

    文摘:提出了線束型三維觀測系統橫向覆蓋次數的一種簡易確定方法,詳細論述了非縱誤差的實質及縱測線方向的選擇方法,根據目前煤田三維數據採集現狀,提出了寬方位角的設想,以便克服以往三維觀測系統中方位角分佈不均的弊端。
  6. A new method about aiming azimuth checking before launch of the ground - to - ground missile

    一種基於遙測信息的瞄準方位角檢查方法
  7. In the 5th chapter, aiming at the case part of complex structure, the information description method based on foundation - structure - unit and azimuth - structure - unit - tree is presented, and hierarchical information model of case part is defined

    第五章針對復雜結構的箱體類零件,建立了基礎結構單元與方位結構單元樹信息描述方法,定義了層次結構的箱體零件信息模型。
  8. Mathematic model of collision avoidance judging based on the information of distance, relative velocity and azimuth angle is made in this paper, it can effectively avoid inveracious alert, and it analyzes the processing method of many kinds information in the system

    本文根據雷達探測系統得到的目標距離、相對速度和方位角等信息,建立了監控系統防碰撞數學模型,與其他模型相比該模型能夠最大限度地避免錯誤警報的發出,並且分析了各種信息在系統中的處理過程。
  9. This method applied to the measurement of precision of original azimuth of underwater to surface missile, through measuring exterior information using optical measurement device, measuring accurate position of shore beacon, calculating error of missile aiming system

    通過光測設備測量系統外部的信息,測量岸標的精確位置,來推算系統的瞄準誤差。對外測岸標法,建立了數學模型,詳細討論了外測岸標的標定方法、原理和方位角的解算。
  10. Its high resolution in range is fulfilled by using pulse compression method. its high resolution in azimuth is achieved by utilizing the doppler information among the signals received by sar at different locations. hence, the acquired image of the targets is of very high resolution

    它採用距離向的脈沖壓縮技術和方位向不同位置上接收到的脈沖間的多普勒信息來獲得兩維的高解析度,從而得到高解析度的目標圖像。
  11. The method of exterior measuring shore beacon has been put forward by using evaluation precision of original azimuth of missile aiming on the background of test for the precision of missile aiming " xx " underwater to surface missile on the sea, established math model and analyzed main parameters of measurement, principle, calibration and azimuth calculating for method of exterior measuring shore beacon was discussed

    對國內主要代表型號的導彈瞄準系統進行了比較詳細的綜述。文章是以「 xx 」潛地導彈海上瞄準精度試驗為背景,給出了一種外測岸標的方法來評估艦載導彈武器系統方位瞄準精度的鑒定方法,適用於潛地導彈初始方位瞄準精度的鑒定。
  12. Finite element method analysis of azimuth gearbox of radar antenna - seat

    雷達天線座方位減速箱箱體的有限元分析
  13. The 29 f globular clusters in the galaxy are selected as samples in my paper ( the space distribution and motional orbits of the samples have not been researched in detail before. ). according to the basic parameters : azimuth coordinates, distances from the sun, radial velocities and proper motions of sample clusters, the initial positions and velocities of the samples are reduced using the galactic coordinates, and their orbits are integrated by numerical method for three different galactic gravitational potential models

    本文選用銀河系中29個累積光譜型為f型的球狀星團作為樣本(這些樣本星團的空間分佈和運動特徵都沒有被詳細地討論過) ,根據它們的基本資料:方位坐標、日心距、視向速度,絕對自行等參數,歸算處理得出了各樣本星團的空間分佈和運動速度。
  14. The paper keens on missile azimuth aiming system, in particular, the measurement method of the precision on aiming system of the underwater to surface missile on the sea

    論文研究的對象是導彈的方位瞄準系統,重點研究潛地彈道導彈方位瞄準系統海上瞄準精度鑒定的方法。
  15. 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波動理論,通過fouricr變換,將橫觀各向同性飽和土三維非軸對稱波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連續條件,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非軸對稱動力響應的解析解。
  16. The principal initial hole factors influencing primary section trajectory, such as sidetracking position ( formation factors ), primary deviating angle and primary azimuth of the sidetracking position are analysed by spatial plane - tilted method

    文章運用空間斜平面法分析了對側?水平井起始段有重要影響的主要初始井眼條件,包括側?點(地層因素) 、側?點初始井斜角、側?點初始方位角等對起始段軌跡的影響。
  17. Then its mathematical model is set up and its validity is proved by computer simulation results. in the following, a new processing method of using three - antenna to detect, locate and image moving target is proposed based on dpca and interferometric theory. this method can not only suppress ground clutter effectively and detect moving target but also locate accurately azimuth position of moving target and estimate its velocity

    深入分析了dpca和干涉的原理后,提出一種沿航跡放置的三天線sar動目標檢測和成像方法,詳細描述了該方法的工作機理,給出系統組成框圖,並給出該方法進行動目標檢測、定位、測速和成像的步驟,然後給出了計算機模擬方案及大量的模擬結果,充分證明了採用該方法不僅能夠有效的抑制地雜波、檢測動目標,還能夠對動目標精確定位,準確估計出動目標的速度,對動目標重新聚焦成像。
  18. Therefore the dynamical characteristic is acted as detected parameter for fractured detection ( primary amplitude secondary frequence ). and the amplitude of mean sguare and central frequence are acted as evaluational parameter, based on the those studies, the new ideas is put forward that fractured azimuth is dected by lateral difference and fractured density is dected by vertical difference for three facters of fracture, wavelet acted as analysis tool and direction by wave field characteristic applied the multiple scale edge dectection and self - adaptive edge detection into the detection theory of seismic fractured azimuth, also put forward the wavelet different scale filter method of the fractured azimuth detection

    因而,確定了主要以振幅,其次是頻率的地震波動力學特徵作為裂縫檢測的被檢參數和均方振幅和中心頻率作為檢驗檢測結果正確與否的評價參數。在上述研究基礎上,針對裂縫的三要素,提出通過橫向求異檢測裂縫方位和縱向求異檢測裂縫密度的新思想。並以小波作為分析工具,以潛山波場特徵作指導,將數字圖像處理中的多尺度邊緣檢測和自適性邊緣檢測引用到地震裂縫方位檢測中來,並提出了小波變尺度濾波法新的裂縫方位檢測法。
  19. At last with the prototype of the vertical - axis cycloid turbine, the optimal method and its mathematical model based on conjugate gradient method are presented in order to enhance the energy conversion coefficient. such optimal results as the energy conversion and the relation between attack angle and azimuth angle are given with particular analysis to sum up the reason of the improved performance of the turbine

    最後以豎軸直葉擺線式水輪機為優化原型,提出了一種水輪機水動力性能的優化計算方法,建立了數學模型,運用共軛梯度法進行優化設計,以提高水輪機的能量利用率為目標,給出了優化的葉片攻角變化規律、能量利用率結果,探討了能量利用率提高的原因。
  20. Basing on the theories of finite element method, analysed computer simulation of high frequency structure in resonator ; 3. compared effects to resonate frequency and fields caused by coupling slots of buncher in different azimuth ; 4

    從有限元理論的角度出發,對計算機模擬計算諧振腔內高頻場結構進行了分析探討; 3比較了調制腔部分耦合縫的位置變化對諧振頻率及腔內場的影響; 4
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