In the imaging process of staring Infrared Focal Plane Array ( IFPA ), the spatial-sampling frequency is determined by the physical size and spatial distance of detecting units. 在凝视型红外焦平面热成像系统的成像过程中,空间采样频率决定于探测单元的物理尺寸和间距。
The distance between the units should be proportional to the local prevailing winds range. 机组间距离应与当地盛行风向变化范围成正比。
Quantitative analysis of deployment distance between fire units based on the composite disposition of the air defense missiles 防空导弹混合部署火力单元间配置距离的量化
However, it is difficult to configure MIMO for the mobile terminals at present because of its rigorous demand for the distance between the antenna units. 但是,MIMO系统对天线间距离的苛刻要求使得其无法在目前的移动终端上使用。
The rectilinear ( straight-line ) coordinates of a projected coordinate system are distance measures, expressed in units of length. 投影坐标系的直线坐标是距离度量,表示为长度单位。