目距 的英文怎麼說
中文拼音 [mùjù]
目距
英文
eye distance-
For quick truning to target of air - to - air missile ( aam ) for short range dogfight in large off - boresight it is necessary to study the agile turn control law
摘要為了使近距格鬥空空導彈在大離軸角發射時能快速地轉向目標,需要研究快速轉彎控制律。Two stars have the same absolute magnitude. one is thousand times farther away than the other. what is the difference in apparent magnitudes ? which magnitude larger
兩顆星具有相同的絕對星等,其中的一顆比另一顆距離遠1000倍,它們的目視星等有何不同?哪一個的星等數值大?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 vertical and horizontal slides of stramata of cordyceps sinensis ( berk ) sacc were observed and photographed on optical microscope. the shape of perithecia and ascospore of cordyceps sinensis ( berk ) sacc in qinghai province, the number of ascus contained in each perithecia, the number, length, width, the horizontal partition number and the distance among the partitions of ascospore in each ascus were measured and described
把冬蟲夏草子座製成縱、橫切片,用光學顯微鏡觀察並拍照,對青海冬蟲夏草子囊殼及子囊孢子的形態、每一子囊殼中所含子囊、每一子囊所含子囊孢子的數目、長度、寬度、橫隔隔數和隔距進行了測量與描述。Pluto, the remotest planet in the solar system currently known, is about 80 astronomical units away from the sun
太陽系與行星太陽系目前最遙遠的行星冥王星距離太陽約The relationships between the number of diffraction order and grating pitch, refractive index of medium, light wavelength, incidence angle and azimuth angle are investigated
討論了入射角、入射方位角、入射光波長、光柵柵距、介質折射率與矩形光柵衍射級次數目間的關系。The cost of the system is reduced and the structure is predigested, and it makes the detection system can measure distance, relative velocity and azimuth angle at the same time
這樣做既提高了系統的經濟性,簡化了結構,又使得系統具有了同時測量目標距離、相對速度和方位角的功能。By using the processing method of sliding time window, the problem of the periodicity range ambiguity is solved. meanwhile, the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method. then, the pulse width parameter which is the most important in the parameters of fmicw is analyzed. the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing. at last this thesis introduces the different signal processing methods of fmpcw and fmicw
同時利用該方法解決了fmpcw信號的由於目標距離超過雷達的最大單值測距范圍而引起的距離模糊問題。然後對fmicw波形參數中最為重要的脈沖寬度進行了分析,給出了更為嚴格的約束條件,保證了信號處理后距離譜峰值的唯一性。最後,分別介紹了fmpcw和fmicw信號的不同處理方式,並對兩者不同的時域濾波性能進行了比較,並對二者的差異進行了分析。Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used
通過對差頻信號進行的分析,得出了差頻相位的具體表達式,表現出了要檢測的各量的物理意義,對檢測的方法提供了理論依據。利用二維fft方法,可以有效地提取回波中目標的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題,採取時間波門的處理方法。= " pump action shotgun. fires a wide spray of buckshot capable of great damage at close range with decreasing effectiveness based on distance from target.
"泵動式霰彈槍。發射散布寬廣的霰彈,在近距離能產成巨大殺傷力,殺傷效果隨著與目標的距離而遞減。[ enstr ] = " pump action shotgun. fires a wide spray of buckshot capable of great damage at close range with decreasing effectiveness based on distance from target.
"泵動式霰彈槍。發射散布寬廣的霰彈,在近距離能產成巨大殺傷力,殺傷效果隨著與目標的距離而遞減。Spell. target foe and all foes adjacent to your target are crippled for 5. . 13 seconds. caltrops has half the normal range
咒文魔法。使目標敵人及其鄰近敵人遭受殘廢病癥( 5 ~ 13 )秒。此技能對目標的有效施展距離是正常的一半。Due to the image exists the instances of spin and distortion, in order adopting part small template proceed matching in order to reduce thereof impacts by as possible, besides small template matching may decrease calculation quantity, and it is propitious to real time of matching. looking into be on the impact of illumination, chromatism, under cloak circumstance template size and quantity select versus matching rate. matching primitive chooses gray, gray information measure large and most easy to obtain, but it is rather effected by illumination condition and chromatism, maximum matching rate restricted to 70 %
瓷磚缺陷檢測採用待測圖像與標準圖像作差法,作差法對匹配精度要求較高,因此在匹配誤差存在的點進一步做了亞像素級的匹配;導彈目標識別,採用背景匹配的方法,統計背景移動距離指導目標的識別;叢林中移動目標識別,採用作差法找到目標區和背景區,分別採用不同的模板和閾值匹配,統計目標區匹配結果。Armstrong was the leader of a gang of rough men from clary ' s grove, a strip of land three miles from the village
阿姆斯特朗是一夥粗人的頭目,來自克萊爾小樹林,那是距離本村子三英裡外的一長條土地。At the present time, human actual law system is far distant from the cognizable justice target
目前,人類的實在法制度與可認知的正義目標還有很遠的距離。The spinning motion makes the scattering dots changed rapidly during the imaging, which makes the one - dimension range - profile between conterminous targets change acutely
自旋運動使目標散射點在成像期間發生變化,使得相鄰回波間目標的一維距離像變化劇烈。Its purpose is for contractible retiree of basic annuities difference, assure the basic life after low income worker retires
其目的是為了縮小退休人員基本養老金的差距,保證低收入職工退休后的基本生活。Whereas art historians will dilate on the symbolism of capturing the visual world in the convex mirror prominently displayed on the rear wall, i will be concerned instead with its optical properties, such as its focal length and light - gathering power
藝術史學者會注意後面墻上那面醒目的凸面鏡,對它捕捉了視覺世界的象徵意義加以熱烈討論,而我則會專注於它的光學特性,如焦距與聚光能力。The tactical missile seeker handover accuracy from midcourse to terminal guidance is researched. the small perturbation method is proposed to analyse error sensitivity of the seeker presetting parameters from error sources. firstly, the terminal guidance seeker presetting parameters are computed, based on the equations of a surface - to - air missile movement and a target movement. then the seeker presetting unaccuracy due to the command guidance radar measurement errors is also computed. it can be seen that the seeker presetting errors increase rapidly when the missile is close to the target, which leads to an important conclusion that the late seeker handover from midcourse to teminal guidance should be avoided
研究復合制導的戰術導彈中末制導交班的導引頭預定精度問題.提出用小擾動法分析導引頭預定參數對誤差源的誤差敏感性關系.以中遠程防空導彈為例,結合導彈運動方程組和目標運動模型,計算了中末制導交班的導引頭預定參數,並計算了在制導站雷達測量誤差下的末制導導引頭預定參數的計算精度.可知,導引頭定位參數的計算誤差隨著彈目距離的接近而顯著增大,得到中末制導交班不能太晚的重要結論Abstract : the tactical missile seeker handover accuracy from midcourse to terminal guidance is researched. the small perturbation method is proposed to analyse error sensitivity of the seeker presetting parameters from error sources. firstly, the terminal guidance seeker presetting parameters are computed, based on the equations of a surface - to - air missile movement and a target movement. then the seeker presetting unaccuracy due to the command guidance radar measurement errors is also computed. it can be seen that the seeker presetting errors increase rapidly when the missile is close to the target, which leads to an important conclusion that the late seeker handover from midcourse to teminal guidance should be avoided
文摘:研究復合制導的戰術導彈中末制導交班的導引頭預定精度問題.提出用小擾動法分析導引頭預定參數對誤差源的誤差敏感性關系.以中遠程防空導彈為例,結合導彈運動方程組和目標運動模型,計算了中末制導交班的導引頭預定參數,並計算了在制導站雷達測量誤差下的末制導導引頭預定參數的計算精度.可知,導引頭定位參數的計算誤差隨著彈目距離的接近而顯著增大,得到中末制導交班不能太晚的重要結論分享友人