目標有效截面 的英文怎麼說
中文拼音 [mùbiāoyǒuxiàojiémiàn]
目標有效截面
英文
radar cross-section- 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; ...
- 有 : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
- 效 : Ⅰ名詞(效果; 功用) effect; efficiency; result Ⅱ動詞1 (仿效) imitate; follow the example of 2 ...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 目標 : 1. (對象) target; objective 2. (目的) goal; aim; destination
- 有效 : effective; valid; efficacious
-
In the end of this thesis, on the basis of the mathematical model, three segments of trajectory : the vertical turn, the pn guidance and the direct lateral force control in terminal trajectory are simulated. the results show that with the direct lateral force control reduces in terminal trajectory, the miss - distance is reduced and the precision is improved
4 、論文最後根據前面建立的數學模型,對防空導彈垂直轉彎段、比例導引段以及末端直接力控制段進行了模擬計算,結果表明進行末端直接側向力控制可以有效減小攔截目標時的脫靶量,提高命中精度。In this paper, an optimization design cad system of detached foundation of transmitting electricity iron tower has been studied. the system uses an easy and efficient method named grid search to find out the minimum cost of an detached foundation. at the same time, the depth and width of foundation, the width of column, the thickness of foundation plan have been ascertained
本論文研究開發的輸電鐵塔獨立基礎優化設計cad系統,以最小費用為目標,採用簡單、有效、易於編程的有約束非線性規劃方法? ?網格搜索法,對輸電鐵塔獨立基礎進行優化設計,確定出基礎埋深、基柱寬度、底板寬度、底板厚度等合理截面尺寸,並開發出計算、出圖一體化的優化設計計算機輔助設計系統。Abstract : a optimum design method in which the optimum shapes and dimension of cross sections are selected to minimize the structural volume and get the global optimum solution, is presented first by means of the method of the genetical gorithm. the numerical results show that the model is valid
文摘:利用遺傳演算法,首次提出「取剛架截面形狀和尺寸規格為設計變量,結構體積為目標函數,求全局最優解」這一優化模型.通過對各個計算環節的研究,確立了可行的計算方法,編制計算程序,並以算例證明該方法的有效性Agat claims that it is effective at ranges of up to 13 km against a target with a 5 m2 radar cross - section
阿加特設計局聲稱這種導引頭可以有效地在超過13公里的距離上對付雷達截面積在5平方米的目標。The bar sectional sizes are optimized to make the weight of the structure minimized under constraints of stress, displacement and local stability. at the second step, supposing the active displacement constraints of the first step keeping unchanged. a quadratic programming model that increases the structural rigidity is solved
求解時分為兩層,第一層在給定節點位置下對桿件截面進行優化,同時考慮了應力、局部穩定約束和位移約束的重量最輕;第二層假定截面層的有效位移約束作用不變,求解一個使桁架剛度增強的二次規劃問題,獲得既不違反約束,又使目標函數不上升的新的節點位置,再返回第一層。In this situation, we are confronted with not only the problem that truncation error is large while the target maneuvering and the trajectory changing notably, but also the problem that how to fuse all kinds of data effectively
在多傳感器目標跟蹤系統中,不僅同樣面臨著目標機動、彈道變化劇烈時多項式濾波的截斷誤差較大的問題,而且需要考慮測速數據和位置觀測數據的有效融合。分享友人