base-height ratio 中文意思是什麼
base-height ratio
解釋
基高比-
According to the code for aseismatic design of building structure ( gbj11 - 89 ), the seismic base - shear method has always been used to calculate the seismic response of building structures. in those structures, their weights and rigidities equally distribute along their heights which do not exceed 40m, and their deformations are mostly the shearing type ( when the structures " ratio of height and width are smaller than 4 )
我國《建築抗震設計規范》 （ gbj11 ? 89 ）中規定，對于重量和剛度沿高度分佈比較均勻、高度不超過40m ，並以剪切變形為主（房屋高寬比小於4時）的結構，可採用近似計演算法，即底部剪力法來計算其地震響應。 -
During this paper, definition of the measure enter - cover - probability is given, andthree - dimension detection space are transformed to level detection circles on differentheights. aiming at the most normal situation of symmetric line, cross - to line and cross - awayline taken by the carrier, probablely - enter - cover - target - distribution are analysed in relativemovement method on the premise that targets fly perpendicular to the flying direction of thecarrier. mont - cario method is used to simulate uniformly - distributed - targets situation and getthe measure, and results are used to analyse the influence of line - landscape - orientation - ratio, line - portrait - ratio, and speed - ratio on the measure. for further research, influences of height and blind space are also discussed on base ofradar level detection range, and situations of non - uniformly - distributed targets are alsoresearched
為了分析主動探測空間動態性能，本文首先提出以「目標進入雷達覆蓋區概率」 （簡稱為「覆蓋率」 ）作為評價指標;然後將三維探測空間轉換為不同高度層對應的水平探測圓，針對載機採用雙平行航線、交叉相向航線和交叉同向航線的最一般情形，採用相對運動的方法，分析目標垂直入侵時可能進入雷達覆蓋區的目標分佈情況;再運用蒙特卡洛法進行模擬計算，分析並比較目標服從均勻分佈時航線橫比、航線縱比及速度比對性能的影響。
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