wake of ship 中文意思是什麼
wake of ship
解釋
船舶伴流-
The state - of - the - art of the study of ship and ship wake detection is summarized. the target types of the ship and its wake in different resolution sar images are analyzed and a conclusion is draw. the issue of ship target detection to the low or middle resolution sar image is point target detection while the issue to the high - resolution sar image is hard target detection
本文在文獻綜述的基礎上，全面分析了sar圖像艦船目標及其尾跡檢測的研究現狀，通過應用sar圖像理解的基本理論，分析了不同解析度圖像中艦船目標及其尾跡的類型，並得出結論：中低解析度sar圖像中的艦船目標檢測是點目標檢測；高解析度sar圖像中的艦船目標檢測是硬目標檢測； sar圖像艦船尾跡檢測是線性目標檢測。 -
Based on theoretic analysis and adopted computer simulation, this thesis has made an in - depth study of the ship wake features, the synthetic aperture radar ( sar ) imaging mechanism of wakes, the simulation of sar imaging of wakes, the optimal observing conditions of sar and other related problems. it is the fundamental research work of ship wakes detection and of ship ' s moving parameters inversion
本論文以理論分析為基礎，採用計算機模擬模擬的方法，深入地研究了艦船尾跡特徵、尾跡的sar成像機理、尾跡成像模擬、 sar的最佳尾跡觀測條件以及一些相關的問題，為sar對艦船尾跡檢測、運動參數反演的方法和實現技術開展前期基礎性研究。 -
The uniformity of propeller wake has close relationship to noise and vibration problems at ship stern
艉跡流的均勻性與船艉振動與噪音問題有直接相關性。 -
To avoid or reduce these trouble induced by the unsteady cavitation, the theoretical design method for propeller and the blade section with the good cavitation performance are adopted to enlarge the cavitation bucket width and control the range and type of the cavitation on the blade. this enables propeller to operate in the non - uniform ship wake rather well
為了避免或減緩空泡帶來的危害，採用螺旋槳理論設計方法和空泡性能優良的槳葉剖面來增加空泡斗寬度和控制槳葉空泡范圍及空泡類型，以適應非均勻流場中螺旋槳工作的需要。 -
An experimental study on the spreading and temperature distribution of a ship model ' s wake in a thermal stratified flow
熱分層環境下船模尾流溫度分佈與擴展規律的試驗研究 -
A ship target detection system, which based on the study of target detection, wake detection and feature extraction, has been developed
在艦船目標檢測、尾跡檢測和特徵提取的研究基礎上，實現sar圖像艦船目標檢測系統。 -
This paper, which background is engineering application, is based on the theory of the understanding of sar image. it studies on the aspects of ship target detection, ship wake detection, ship feature extraction and establishment of the sea area target surveillance system
本文以工程應用為背景，以sar圖像理解理論為基礎，重點圍繞sar圖像艦船目標檢測、艦船尾跡檢測、艦船特徵提取、海域目標監視系統建立等方面開展了研究。 -
This paper adopts the theoretical method to research the problem on the performance prediction and the design of the propeller operating in ship wake systematically
本文採用理論方法系統地研究了非均勻流場中螺旋槳性能預報和理論設計問題。
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