雷軌 的英文怎麼說

中文拼音 [léiguǐ]
雷軌 英文
mine tracks
  • 雷 : 1. （雲層放電時發出的響聲） thunder 2. （軍事上用的爆炸武器） mine 3. （姓氏） a surname
  • 軌 : Ⅰ名詞1. （路軌;軌道） rail; track 2. （比喻辦法、規矩、秩序等） rut; path; course Ⅱ動詞[書面語] （遵循; 依循） follow
  1. Area electronic buoys system is a large - scale underwater sound equipment of tracking and locating moving objects such as submarines, torpedoes and ships. with advanced vector sensors as detective devices, it has excellent antinoise performance, and its signal noise ratio is high

    區域電子浮標系統是一套大型的水聲跟蹤定位設備，其主要任務是準確跟蹤和定位海上多個運動目標（如潛艇、魚雷、船隻等）的運動軌跡。
  2. Many economists, from adam smith, carl marx, marshall to bain, galbraith and chandler, have treatises on the tendency of enterprises " becoming larger. in more than two hundred years, we can see the track of their thought in their respective works : the wealth of the nations, principles of economics, the theory of industrial organization, monopoly and economic concentration, and visible hand

    關于企業大型化的趨勢從亞當?斯密開始，經馬克思、馬歇爾、到貝恩、加爾布雷斯和小艾爾弗雷德?錢德勒，二百多年來，國外學者論著眾多，我們可以從《國富論》 、 《資本論》 、 《經濟學原理》 、 《產業組織論》 、 《新產業國家》和《看得見的手》等系列文獻中看到他們的理論思想軌跡。
  3. The black - and - white photos, taken by three cameras, show deep channels and layered surface debris around the planet ' s midsection, features that probably were formed by water, said alfred mcewen, a mission scientist and university of arizona professor of planetary science. the images were taken from an altitude of 1, 547 miles above the surface, about three times higher than the orbiter will be when it formally begins its science mission in november

    據路透社3月24報道，參與此項任務的亞利桑那大學行星學教授艾爾佛雷德麥克尤恩說，這批黑白照片是由火星偵察軌道器mro上的3臺照相機拍攝的，照片顯示，火星中部地區分佈有深溝和層狀表面的巖屑，這些地貌有可能是水的運動造成的。
  4. Second, the imaging model built here has taken into account the tilt modulation, the hydrodynamic modulation, and current modulations of radar cross section. consequently, it has realized the imaging simulation of four kinds of wakes with the same imaging model. third, the orbital velocity of ocean wave was considered as the basic dynamic factor, and the imaging model calculates the influence on raw data by the wave m ovement according to the orbital velocity

    該模型的主要特點是： （ 1 ）它採用了三尺度復合表面模型的思想來計算海面的電磁散射，考慮了中等尺度波對紋波的進一步調製作用，彌補了傳統雙尺度模型的不足； （ 1 ）它考慮了海浪的傾斜調製作用、流體動力調製作用和流場對雷達截面的調製作用，實現了用統一的模擬模型對四種艦船尾跡特徵進行成像模擬； （ 3 ）它把海面長波的軌道速度作為基本的動態成分，並依此來考慮海面運動對sar回波信號的影響。
  5. The usaf radar reports then ceased jan. 11, but then appeared for a day showing " signs of orbital distress "

    美國空軍雷達的報告在1月11號中止了，但是有一天報告顯示有「軌道災難的跡象」 。
  6. The oscillation is called a laser wakefield because it trails the laser pulse like the wake produced by a motorboat

    這個震?稱為雷射尾跡場，因為雷射脈沖的軌跡，就像機船在海面上所產生的船痕。
  7. The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering

    本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。
  8. Then according to the radar equation, on the base of the platform of ray tracing, builds a simulation platform of backscatter ionogram

    然後根據雷達方程計算返回散射能量，在射線軌跡平臺的基礎上，建立了返回散射電離圖模擬平臺。
  9. With a roar and thundering sound, the rocket left a trail of fire as it reached into the blue sky. onlookers applauded when the rocket finally reached orbit

    隨著一聲雷鳴般的巨響，火箭拖著一道火焰軌跡沖向藍天。當火箭駛入軌道時，旁觀者都拍手喝彩。
  10. Arod airborne radar orbital determination

    機載雷達軌道測定
  11. The background of this thesis is scene surveillance radar, which is mainly applied in target imaging, recognizing and tracking at airports

    本課題的背景是場面監視雷達，其應用背景是針對機場，對機場內目標進行距離分辨力成像、識別和軌跡跟蹤。
  12. Radar altimeter is a kind of very important microwave sensing instrument for observing the earth, and there are a lot of key technologies involved in the high resolution spaceborne radar altimeter ( hrsbralt ). the principle of hrsbralt, the acquisition and track methods, the if simulation, the closed loop internal calibration method, the pulse repeat frequency ( prf ) design, and the ocean - land compatible altimeter design are studied in this dissertation

    雷達高度計是一種重要的微波遙感儀器，本文就高解析度星載雷達高度計的工作機理、跟蹤方法、大時帶積在軌閉環內校準以及海陸兼容等內容進行了深入的研究，具體包括以下八個方面的內容： （ 1 ）深入研究了星載雷達高度計的工作機理，並對典型雷達高度計系統進行了分析。
  13. The elements of situation maps include the information of flight track, detection range of radar, capability of weapon attack, and quantification of being attacked etc

    態勢圖元素包括飛機的軌跡信息、雷達探測范圍信息、火力攻擊范圍信息，以及受威脅程度的定量描述等。
  14. Study shows that the effect of the shock of heavy rain on an airplane in the low - level wind shear of thunderstorms is evident, the flight resistance resulted from the roughness of airplane is able to change the flight track and endanger the flight safety, whereas, the increase in the mass of airplane caused by the water film on the airframe and its wings in heavy rain is nigligible

    結果表明：雷暴低空風切變中大雨雨滴的沖擊作用是明顯的，被粗糙化的機體所產生的阻力能顯著改變飛行軌跡，並能影響飛行安全；累計在機身和機冀上的水膜厚度造成的飛機質量的增加對飛行的影響可以忽略。
  15. This method offers more precise geometry for spaceborne sar system design and simulation. 3. in the analyzing on the radar doppler properties, under the ellipsoid earth model and ellipse orbit model, considering the earth rotation, the radar doppler properties with different orbit eccentricity are compared, and the fact that orbit eccentricity affects doppler frequency rate is found

    在雷達多普勒特性分析中，論文採用橢球地球模型和橢圓軌道模型，結合地球的自轉，通過不同偏心率下雷達多普勒特性的比較，研究了軌道偏心率對合成孔徑雷達系統設計與模擬軟體研究雷達多普勒調頻斜率的影響。
  16. 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
  17. Then, we use a simulation method to create a large number of radar measurement values, produce a quantity of random numbers using computer software and add them to the radar measurement values, we use kallman filtering method to calculate the location, velocity and trajectory coefficient of the target at the moment of the final tracking point, and use the numerical solving method of differential equation to calculate the trajectory, the location of the hostile artillery or the impact point of its own projectiles, finally, we calculate statistically the random error of the tracking system and analyze the location accuracy

    然後採用模擬模擬方法獲得大量的雷達測量值，由計算機軟體產生大量的隨機數，加入雷達測量值中，用卡爾曼濾波法計算出最後跟蹤點時刻的目標位置、速度和彈道系數，再用微分方程數值解法計算出整個彈道軌跡、計算出敵方炮位的位置或己方炮彈的落點，最後統計出跟蹤系統的隨機誤差，分析定位精度。
  18. First sar - lupe launched to form germany ' s first satellite - based reconnaissance system

    歐洲首顆雷達成像偵察衛星入軌服役
  19. 3 ) we research the attitude character of the radar target in the midcourse, analyse the rotation of the target in the midcourse on the basis of the attitude dynamics of space target. with the data of the trajectory in the midcourse, we calculate attitude parameter of the ballistic missile

    在空間目標姿態動力學的基礎上分析中段目標的進動，結合中段軌道數據，給出了中段彈道導彈的姿態參數（目標雷達視線角）的計算結果。
  20. Previous data had given the search for lunar ice a boost, including 1992 radar data indicating ice deep in craters at the poles of mercury, 1996 radio data from the moon taken by the clementine orbiter, and the lunar prospector orbiter ' s 1998 discovery of an elevated amount of hydrogen at the lunar poles

    早先的數據推動了月球冰的搜索，包括1992年雷達數據顯示在墨丘利環形山深處的冰， 1996年克萊門汀軌道器採集的月球雷達數據，以及月球勘測者1998年發現的月球兩極氫數量的提升。
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