捕獲目標 的英文怎麼說
中文拼音 [bǔhuòmùbiāo]
捕獲目標
英文
target pickup- 捕 : 捕名詞(姓氏) a surname
- 獲 : Ⅰ動詞1. (捉住; 擒住) capture; catch 2. (得到;取得) obtain; win; reap 3. (收割) reap; harvest Ⅱ名詞(姓氏) a surname
- 目 : Ⅰ名詞1 (眼睛) eye 2 (大項中再分的小項) item 3 [生物學] (把同一綱的生物按彼此相似的特徵分為幾...
- 標 : Ⅰ名詞1 [書面語] (樹梢) treetop; the tip of a tree2 (枝節或表面) symptom; outside appearance; ...
- 捕獲 : 1. (捉到; 逮住) catch; capture; succeed in catching; acquire; arrest; seize 2. (俘獲) trapping
- 目標 : 1. (對象) target; objective 2. (目的) goal; aim; destination
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If the target speed is low or acquisition is early, impact will occur at a greater range.
如果目標速度較低或者捕獲目標較早,那麼命中點將發生在較遠的距離上。The complex nonlinear pursuit - evasion model of two spacecraft in near - earth coplanar orbit is simplified to linear model, the circular region the radius of which is equal to capture radius is defined as target set, capture is achieved when the evader come into the target set and the game is over ; the boundary of useable part ( bup ) is determined, and the analytical form solution of the linear equations is obtained by backward integration of the state variables from the bup, the linear barrier of the pursuit - evasion model and the optimum thrust of the both sides are thus obtained
本文將近地共面軌道內運動的兩飛行器非線性追逃模型簡化為線性模型,以捕獲半徑的圓域定為目標集,確定目標集邊界上的可用部分,並以此為各狀態變量的起點,對時間進行倒向積分,求得線性方程組的解析解,從而確定了該追逃模型的線性界柵,以及界柵上對策雙方的最優推力,即求得了滿足最優策略時相對運動的軌跡和推力。Lc apparatus almost meet all the needs of space optical communication such as weight, size, power consume, life, cost, driving voltage, intergration of optics and electricity, programe, optically take ? over aperture, beam scanning, deflexional range and so on. switches, deflexional facilities and scanning equipments which made with lc have been used in the system of labor in space communication. the only bug of lc apparatus is that their answer speed only get microsecond rate or submicrosecond rate. but it is practical for them to be used in special beam capture, scan, deflexion controling which don ’ t concerned with code rate and code type
液晶器件幾乎滿足空間光通信的所有大的指標要求如重量、尺寸、功耗、壽命、成本、驅動電壓、光電集成、可編程性、光學接收孔徑、光束掃描和偏轉范圍等等。液晶光開關、光偏轉器、光掃描器已經開始應用於光纖通信的實驗系統中。液晶類器件應用於光通信的唯一重大缺陷,是其響應速度目前只能達到微秒級或亞微秒級,不過,在不涉及到碼型碼率的空間光束捕獲、掃描、偏轉、控制方面,液晶器件完全可能進入實用化。Developed specifically for dismounted operations in urban environments and the subject of a rapid acquisition by the australian army initiated early in 2005, the oavd features longer - than - normal eye relief and permits the firer to scan a target from behind walls, obstacles and around corners
2005年初由澳大利亞陸軍提出並專門為城市環境內下車作戰和快速捕獲目標而開發了離軸觀察裝置,它能加長眼睛觀察時間並能使射手在墻、障礙物後面或繞過墻角處觀察目標。After establishing the model of intermediate frequency direct sequence spreading spectrum ( if dsss ) receiver, comparing and analyzing several conventional code acquisition methods, code and carrier two - dimension fast acquisition scheme based on two - dimension fft is proposed. finally, the situation for two targets is analyzed
首先在建立了中頻直擴接收機的模型之後,本文對常用的偽碼捕獲方法進行了詳細地分析和比較,然後提出了本文的基於二維傅立葉變換技術的快速捕獲方法,並且分析了兩個目標時的情況。Nearly one third of total catches are thrown back into the sea, often dead, because they are either the wrong species, too small, or over - quota
全球幾乎有三分之一的漁獲由於並非漁民的捕撈目標體積太少或捕撈量超過漁獲配額而被丟回海中,大部份魚類更因而死亡。After target is detected the on - board avionics suite in combination with the automatic control system of the helicopter solve the task of bringing the helicopter to the designated point and automatic firing of the weapons selected by the pilot
當捕獲目標后,機上的自動控制系統與電子系統將解算任務數據,引導直升機飛向敵潛艇水域,並在飛行員指令準許下自動發射武器進行攻擊。The improvement to internal ballistic calculation precision of solid rocket motor ( srm ) is important to capture target of missile. and to accomplish it ' s task. calculation of burning surface of propellant grain is essential to interinal ballistic performance calculation
提高固體火箭發動機內彈道的計算精度對導彈準確捕獲目標、完成任務有著重要的作用,而發動機工作時瞬態燃面計算是內彈道性能計算的基礎。The performance targets of acquisition and tracking : the code rate of pseudorandom signals is 1m - 5mhz, the code length is 255. 511, the receiving sensitivity is - 118dbm, the dynamic range is 70db. the doppler of carrier is 75khz, the time that 10 targets are captured within 0. 2s
捕獲和跟蹤的性能指標:偽隨機信號碼率1m 5m比特/秒,碼長是255 、 511 ,接收靈敏度是- 118db ,信號動態范圍是70db載波普勒是75khz ,目標捕獲在0 . 2秒內。Combining the blind beamforming with the estimation of doa, the doa can be estimated at the same time when the source signals are recovered
並將盲波束形成與目標方位估計相結合,實現在捕獲、恢復目標源信號的同時,估計出目標的波達方向。Study of target acquisition probability for laser - guided bombs with proportional navigation guidance law
激光比例制導航彈對目標的捕獲概率分析( 2 ). according to the system indices and requirements together with the technology characteristic, it researches the capture possibility of apt capturing system. then it introduces the common scan methods, such as raster, spiral, raster spiral, rose and lissajo. ( 3 ). it makes a detailed simulation analysis of the raster and spiral scan, analyze the connection between capture probability, capture time, system index at different capture resolution angle, capture range, vibration angle extent and terminal location distributing mean square deviation
其中對幾個關鍵部分進行了詳細分析:計算了目標角反射器的激光雷達散射截面( lrcs )值,研究了qd與ccd對目標位置角度的計算方法和空間解析度; ( 2 )根據系統指標和要求並結合現有國內技術特點研究了apt捕獲系統掃描的捕獲概率問題,然後分析了幾種常見的掃描方式:矩形( raster )掃描、螺旋( spiral )掃描,矩形螺旋( rasterspiral )掃描,玫瑰形( rose )掃描以及李薩如形( lissajo )掃描; ( 3 )對分行掃描和螺旋掃描進行了詳細的模擬分析,分析了它們在不同捕獲分辨角、捕獲范圍、振動角振幅和終端位置分佈均方差時的捕獲概率、捕獲時間與系統常數之間的關系。The second part studies optimal pure proportional navigation ( ppn ), with time - dependent gain of navigation to maneuvering target based on proportional navigation theory. optimal gain of navigation is constant for ppn without maneuvering ; based on this, solution of time - dependent gain of navigation is given by iteration approach, and the time required for capture is given, the times of iteration is decided by comparing this time with the iteration step
對目標機動的追逃問題,考慮導航增益可為任意實數,且隨時間和初始條件改變,這一思想是建立在目標非機動的純比例導引制導規律,最佳導航增益為常數的基礎之上,利用迭代的方法,給出了時變的導航增益的求解方法,並給出了實現捕獲所需的時間,用此時間與迭代步長進行比較,判定迭代次數。3 we choose unit time the maximum sustainable yield as the management objectie ; ?
3以單位時間最大可持續捕獲量為管理目標; 32 we choose the maximum sustainable yield as the management objective ; we choose the maximum sustainable economic rent as the management objective in
2以最大可持續捕獲量為管理目標; 2 3以最大凈利潤為管理目標; 2In [ 26 - 30 ], the optimal harvesting policies that maximized the sustainable yield for autonomous single - species harvesting models were studied
文獻[ 26 - 30 ] ,討論了自治單種群捕獲模型,以最大可持續捕獲量為管理目標,得到了最優捕獲策略In [ 21 - 25 ], the optimal harvesting policies for autonomous single - species harvesting models were studied, which maximized the sustainable yield and economic rent respectively
文獻[ 21 - 25 ] ,討論了自治單種群捕獲模型,分別以最大可持續捕獲量和最大凈利潤為管理目標,得到了最優捕獲策略Pn is the method to obtain optimum control in condition of target without maneuvering, pursuer is controlled by feedback of opponent ’ s information and by continually updating the gain of navigation to achieve capture of maneuvering target, thus the pn is optimum control of one - side
比例導引律是在目標非機動下得到最優控制量的計算方法,通過將對手信息反饋,不斷更新導航增益控制追蹤者,實現目標在機動時的捕獲,故其是單方最優的控制。One valid scenario is to create the replication control tables for capture on the source database, and the apply control tables on the target database
復制控制服務器上的用於捕獲復制數據的控製表。目標數據庫中的控製表用於應用復制數據。Using the sampled controlling parameters of the aircraft under pure proportional navigation ( ppn ), the thesis designs the corresponding discrete input signal of the guidance controller under the inside demand of the pursuing control, and trains a module of rbf off - line. then, the module is inserted into the control system of the aircraft and acted as its control input in order that the optimal function of the aircraft under ppn can be realized
在分析比例導引律導引載機追蹤/截獲目標的狀態軌跡的基礎上,闡述徑向基神經網路的非線性功能特點,根據載機追捕目標的內在要求,設計並訓練徑向神經網路模塊,嵌入載機導引器的控制迴路,實現優化載機導引控制。分享友人