空中測位 的英文怎麼說
中文拼音 [kōngzhōngcèwèi]
空中測位
英文
airplot-
We knew that the isotopic compositions of noble gases observed in space ( like those measured in meteorites and cosmic dust ) were clearly distinct from those found on the earth
我們知道太空中惰性氣體的同位素組成（像在隕石與彗塵中測量到的情形） ，與地球上的截然不同。It was cloudy ; and the captain had to calculate our position by dead reckoning
空中陰雲密布，船長不得不用羅盤測航法以確定我們的位置。All of above presents the data to study the algorithm which will be used to detect the targets against the broadened bragg lines. eigenstucture - based algorithms are used to realize bearing resolution on the basis of synthetically comparing several classical algorithms. first sea echo ’ s bearing prior knowledge is utilized to constitute project operator to constraint the noise subspace estimation with the use of constrained music algorithms, which largely increases the resolution and doa estimated accuracy
為檢測海上目標的方位信息，在綜合分析比較各類演算法的基礎上，本文採用特徵結構類演算法來實現空間方位分辨中的constrainedmusic演算法，此方法充分利用了海浪的方位先驗信息來構造投影運算元約束噪聲子空間的估計，大大提高了目標解析度和估計精度。The application of the gps data applied in aerial triangulation can reduce the dependency on the number of the field control points, fall the cost, short the map generation period and improve the economic benefit. at first, the article analyzes the development at present which gps data applied in the aerial triangulation, introduces the relative dynamic location principle of gps and the revolution on problems of gps applied in aerial triangulation
Gps數據在空中三角測量中的應用，對于減少對野外控制點數量的依賴，降低成本，縮短成圖周期，提高經濟效益具有重要意義本文分析了gps用於空中三角測量的發展現狀，介紹了gps相對動態定位原理及gps數據用於空中三角測量的幾個問題的處理。A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it. some results have been summarized as follows : l. according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront, the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied
本論文在激光光束波前畸變檢測和控制上進行了新的探索，主要就空間相位調制環路徑向剪切干涉儀以及它對波前畸變的檢測和液晶空間光調制器及其對中頻段波前畸變的控制進行了研究，其研究的內容和取得的成果如下：一、根據標量衍射理論，結合低頻波前畸變的高斯隨機位相分佈模型，研究了不同均方根梯度低頻畸變波前對激光光束焦斑聚焦性的影響，並採用描述中頻段波前畸變的功率譜密度概念，模擬計算了它對激光焦斑旁瓣的貢獻。Hollywood stunt pilot was supposed to snag the genesis capsule as it floated toward earth on a parachute at the end of its three - year mission to collect solar ions
三年來， 「起源」號太陽探測飛船的主要任務就是收集太陽粒子。在完成該使命后，飛船藉助降落傘返回地球。按計劃，一位好萊塢的特技飛行員將對返回艙實施空中攔截。According to more effect, when the hore component is placed in a gradient field, at the same time the direction of the current is perpendicular to the direction of the voltage, then between the two parallel side face come out the hore voltage. when hore component is set in this kind of uni - gradient magnetic field and the electric current is unchanged, the voltage output of hore component will be proportional to the position of the hore component in the magnetic field. so we can use the hore component to measure the movement of hore component against magnetic field
根據霍爾效應可知，置於磁場中的霍爾元件若電流方向與磁場方向垂直，則在霍爾元件垂直於磁場和電流方向的兩個側面將產生電勢，將霍爾元件置於強度隨空間位置線性變化的磁場中，且控制電流恆定，輸出就正比于霍爾元件處于磁場中的位置，因此可以用霍爾元件來測量磁場與霍爾元件間的相對位移量。The single - observer passive locating method with phase difference rate of change and some key technologies - are studied in this dissertation on the applying background of locating remote slow offing targets with fast plane. this dissertation is outlined as follows
本文面向快速運動的空中觀測平臺對海面慢速運動目標定位的特定應用背景，利用相位差變化率方法進行了單站無源定位體制和關鍵技術的理論研究。This paper comparatively analyzes three more practical measurement methods of surface charge distribution on dielectric in vacuum environment : surface potential measurement method, electrostatic capacitive probe measurement method, pockels effect reflecting measurement method, expounds some newly researched productions, and at last puts forward some new problems to be solved in this field
摘要對比分析了真空中介質表面電荷分佈測量中三類較實用的方法：表面電位法、靜電容探頭法、普克爾斯效應反射法，闡述了真空中介質表面電荷測量方法的研究新成果，最後提出了這一領域留待解決的新問題。On the contrary, the infrared passive sensors detect and locate the targets in the space by the use of the heat of the targets, and they do n ' t radiate any energy to the space
和雷達不同，紅外無源探測器通過接收目標輻射的熱能進行定位和跟蹤，不向空中輻射任何能量，因而不易被偵察或定位，具有很強的抗干擾能力。Overhead satellites, diving robotic probes, buoys, sonar mapping, floating and underwater observatories and tagged ocean animals ( whose tags email scientists every day with an update as to where they ' ve been and what they ' ve been doing ) allow scientists to see more of the oceans than ever before
太空中的衛星、潛水機器探測器、浮標、聲波定位儀、海面與海底實驗室，以及被做了標記的海洋動物（這種標記能讓科學家每天都得知這些動物到了那裡，正在做什麼）讓科學家比以前對海洋有更多的了解。The cause of vacuum degree formation under groundwater table is discussed in the paper. the testing results show that vacuum degree above the groundwater table is produced directly by pumping air, and that vacuum degree below groundwater table is produced mainly by dewatering and by escaping of sealed air from the end of flexible pipe. based on the bernoulli equation, the limit lowering of groundwater table is analyzed, which is about 5 ~ 7m. the effective influence depth of vacuum preloading has relationship with pvds depth and can be more than 10m
對地下水位線以下的真空度成因進行了分析，結果表明，地下水位線以下測到的真空度是由於測試軟管中水位下降或部分封存氣體從軟管末端逃逸引起的，與地下水位線以上的真空度由抽氣直接形成在成因上存在不同；根據伯努俐方程，對地下水位下降的極限深度進行了分析，得出真空預壓中地下水位的極限下降深度為5 7m ；對有效影響深度的分析結果表明，真空預壓的有效影響深度與塑料排水板的打設深度具備一定關系，有效影響深度可以超過10m 。Abstract : cruise missiles have the characteristics of concealment and unexpectedness, so effectively detecting cruise missiles is the crux of cruise missiles defence. in order to increase detecting distance and discovery probability for cruise missiles, we ought to synthetically utilize various measures to make up the all directions target detecting and information communicating system with emphasis, which combines air with ground, far with near, advanced measures with traditional measures
文摘:巡航導彈具有隱蔽和突然的特點，對巡航導彈進行有效的探測，是抗擊巡航導彈的關鍵，綜合利用各種手段，組成空中與地面相結合、遠方和近方相結合，先進手段與傳統手段相結合的全方位、有重點的目標探測與報知體系，可增大對巡航導彈的探測距離，提高發現概率。First, this paper expatiates on the theory about the apparatus of determining object ' s coordinate. in order to get the place and data of the moving object, the track ' s data arc selected from the images and are dealt with several methods. second, the paper discusses a new method that is based on the technology of fuzzy math ' s image intercepting
本文對目標坐標測定儀所依賴的原理進行了理論闡述，為了得到空中運動目標的位置和運動參數，對于每一周期所採集的圖像進行了實時的處理，包括濾波、二值化、目標圖像分割及各種參數提取，這是目標航跡建立所必須的，其成果也已經應用於坐標測定儀中。Moreover, before an observer could have used the information to point a telescope, someone would have had to translate the mean orbital elements into actual positions on the sky
而且，即使觀測人員想利用這份資料搜尋夜空，還得有人將軌道參數轉換成星空中的實際位置，好教望遠鏡對準。Fiber optic gyro ( fog ) inertial system provides angular velocity and acceleration measurement of measurement body along three axes, based on the attitude matrix refreshed by outputs angular velocity to transform the acceleration from the body frame to the earth frame, finally through acceleration integral we can get the position of the measurement body in the space. fog is popular in the navigation field for many advantages, such as wide dynamic range, high resolution and all solid components
該測量方法利用捷聯式光纖陀螺輸出的角速度和加速度信息，測出運載體沿三個方向的加速度分量；再利用光纖陀螺輸出的角速率信號，不斷更新測量體的姿態轉換矩陣，將加速度分量用轉換矩陣更換到地理坐標系；最後經過計算機對轉換后的加速度信號積分運算分別可得到運載體在三維空間中的位置。- 2. in order to accomplish the extraction measuremellt of distorted wavefront on specific plane of a laser beam, a crsi ( cyc1ic radial shearing interferometer ) based on relay imaging technique was built. the experiinental result on this crsi shows it can used to test the spatial mid and low frequency wavefront distortion
二、為了實現激光光束在確定平面上的波前畸變的準確檢測，採用中繼成像技術建立了一套基於空間相位調制的環路徑向剪切干涉波前傳感硬體系統，實驗證明，它可用於中低頻段波前畸變的檢測。Precise kinematic gps surveying can provide users with the precise position, velocity, attitude and time information of the moving platform in real - time or post - processing modes. it is now increasingly used for many surveying and navigation applications on land, at sea or in the air
精密gps動態測量能實時或事後地給用戶提供高精度的位置、速度、加速度、姿態和時間信息，它在陸地、海面或航空中的導航和測量應用越來越廣泛。Balloon automatically released by the automatic upper - air sounding system. the small box middle right, large photo attached to the balloon is a radiosonde
自動高空探測系統投放氣球的一刻，系著的小盒子（大圖右邊中間位置）為無線電探空儀。A laptop computer system known as rover allows troops on the ground to watch the footage, and will soon let them mark out targets
此外，一個被稱為「漫遊者」的手提電腦系統讓地面作戰部隊能觀測到空中單位拍攝到的視頻的連續畫面，這樣他們也就很快能鎖定目標。分享友人