孔位誤差 的英文怎麼說
中文拼音 [kǒngwèiwùchā]
孔位誤差
英文
hole position tolerance-
The research result indicated : for the strip primary mirror discussed in this article, the hexagon light - weighted cell has the best structural rigidity quality, the square cell is a little worse, the triangle cell is the worst ; there is an optimum on primary mirror thickness ; on condition of 1g gravity load combining with 4 centigrade uniform temperature rising, the thinner and higher of the flexible support reed, the better of the primary mirror surface figure. the decision of the structural parameters of the flexible support reed must take static rigidity, dynamic rigidity, static strength and dynamic strength of primary mirror assembly into account
研究結果表明：對于本文的長圓形主鏡，採用正六邊形輕量化孔，鏡體結構剛性品質最好，正方形次之，正三角形最差；主鏡鏡體厚度存在最佳值；主鏡組件在1g重力、均勻溫升4共同作用的工況下，主鏡柔性支撐簧片厚度越小、高度越高，主鏡綜合面形誤差（ p - v值）越小，但同時主鏡組件的剛體位移增大、固有頻率下降，因此柔性支承結構參數的確定要綜合考慮主鏡的綜合面形誤差和主鏡組件靜態剛度、動態剛度、靜態強度和動態強度等因素。Based on research of the antenna assemble procedure, the simulation model of the reflector is set up and error modeling and simulation of position of stick holes, grid bar acrossing the hole and rms of reflector face are achieved
在分析柵格天線裝配過程基礎上，建立了其反射面裝配的模擬模型，並對柵支板中心圓孔位置誤差、柵條穿人誤差和柵面誤差進行了建模與模擬計算。Study of sar multibeam interchannel phase errors
合成孔徑雷達多波速通道間相位誤差研究The paper researches the vortex moment caused by the shape and locality error of one hole in the sphere socket. by analyzing and comparing the result we can find the method to decrease the vortex moment
本課題只研究球窩其中的一個節流孔的形狀和位置誤差所引起的渦流力矩，通過分析比較計算結果，從而找到減小渦流力矩的方法。Trajectory deviation of the aircraft is the main cause of phase errors in airborne ultra - wideband synthetic aperture radar ( uwb sar )
機載超寬帶合成孔徑雷達（ uwbsar ）中，載機的非理想運動是引起信號相位誤差的主要原因。These phase errors cause smearing in the image. if we can measure these errors we could find the moving target. in the preface to the article, the development of gmti technique in the field of sar are introduced briefly
對于高分辨合成孔徑雷達（ syntheticapertureradar ， sar ） ，運動目標在其回波信號中產生額外的相位誤差，造成能量分散和圖像模糊，因此我們若能夠檢測出這個相位誤差就可以檢測到相應的運動目標。The parallel computing ability of wave number domain algorithm is also being studied basically. the influence of the carrier movement errors on the sas image is analysed in chapter three firstly. based on studying those algorithms which have been successfully applied in sar, the limitations of these auto - focusing algorithms are discussed. hereafter an auto focusing algorithm based on time delay and phase error evaluation is raised, which can compensate big movement error effectively and so can be applied in sas
第三章首先分析了孔徑上運動誤差對合成孔徑聲吶圖像的影響，在研究在sar領域里成功應用的演算法的基礎上，對其運動補償的局限性做了分析，提出一種基於時延相位估計的自聚焦演算法，它能夠有效地補償運動誤差帶來的影響，並且適用於sas運動誤差較大的情況。分享友人