航跡的形成 的英文怎麼說
中文拼音 [hángjīdexíngchéng]
航跡的形成
英文
track formation-
Students of the earth ' s mid - ocean ridge were closely following the incoming data from the galileo mission to jupiter, looking for more hints that an ocean of water - and with it, undersea volcanoes - could exist under the ice that covers jupiter ' s moon europa future interlanetary missions to europa and other promising sites seemed far more likely to find support than they had before mckay ' s announcement
研究地球大洋洋底形成的海脊的學者也在密切注視探索木星的伽利略號飛船傳回的最新信息：在木星的衛星歐羅巴表面冰蓋下面是否存在著海洋及海底火山的跡象，將來飛往歐羅巴及其他可能有生命的地點的星際航行任務可能會帶來更多的新發現，支持地外生命這一假設。Thirdly, the theory of single radar multi - target tracking ( kalman filter algorithm, dynamic target model, track ' s origination and expiration, the form of tracking - door and association algorithm ) is dicussed, which is turned the basis of multi - radar centralized - system ' s tracking algorithm
對單雷達的多目標跟蹤理論（卡爾曼濾波、機動目標模型、航跡起始與終結、跟蹤門的形成和互聯演算法）進行了系統的研究，以此作為點跡處理之後集中式多雷達系統跟蹤技術的基礎。Green " s theorem is employed to find the quantity relationship among the constraints of heating rate, dynamic pressure and lift in reentry flight. the paper deduced the approximate solution of the optimal aeroassisted coplanar trajectories under the three typical constraints. the performance index to be minimized are either heat input, the total dynamic pressure, time during the atmospheric flight, the time integral of the square of the path inclination ; or maximize the time of flight during the atmospheric portion of the trajetory. an important conclusion is firstly obtained : under the three constraints above, the optimal aeroassisted coplanar transfers with the first forth kinds payoffs have the same optimal control laws
採用格林函數法，給出了同一平面氣動力輔助變軌飛行的3種過程約束（氣動加熱率、動壓、升力約束）條件之間關系的近似定量描述形成的飛行包絡線.由此求解了航天器同時受3種約束條件時，各種性能指標下的同一平面氣動力輔助變軌軌跡的近似解及相應的最優控制規律.文中對近似解與控制規律的內部結構作了細致的分析，得到了一些有益的結論Aperture synthesis sonar, as its name implies, synthesizes an aperture by storing successive echoes obtained from a moving platform and by processing the results as if they had been obtained from a multi - element array enables a high azimuth resolution to be obtained from a physically small array
合成孔徑聲納，顧名思義就是通過小孔徑物理聲陣的勻速直線運動，將沿航跡方向的回波數據相干累加，形成較大的虛擬孔徑，從而提高方位解析度。合成孔徑技術相對于常規聲納技術的突出優勢在於，它只利用小孔徑的物理聲陣，就可以得到與徑向距離和頻率都無關的高方位解析度。Radar data processing ( rdp ) is critical technology in air traffic control ( atc ) system. rdp receive observation from sensor and processing radar data to tracking target. rdp provide position, velocity, characters and maneuver of target
雷達數據處理是空中交通管制系統中的關鍵技術，它接收雷達傳感器獲取的數據並進行相應的處理，形成表示目標運動軌跡的航跡，提供目標的位置，速度，機動情況和屬性識別，對目標進行跟蹤和監視。分享友人