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- approximate phase center 视在相位中心
- The phase center of antenna is generally different from its geometry center. 通常天线的相位中心与其几何中心是不一致的。
- Abstract: The principle of cube corner array's approximate phase conjugation was analyzed. 摘要： 分析了角锥棱镜阵列“准”位相共轭特性的原理；
- Can calculate the absolute and relative antenna phase center model of the PCV. 可以计算绝对和相对天线相位中心模型下的PCV。
- The correction of the solid tide perturbation to the coordinate of the phase center of GPS receiver has been present. 讨论了固体潮对gps时间传递接收机天线相位中心坐标的摄动改正。
- It is essential for GPS receiver verification to detect the phase center deviation of antenna. 天线相位中心一致性的检测是gps接收机检定工作中必不可少的内容。
- A wide-swath SAR scheme based on displaced phase center azimuth multibeam is presented in this paper. 该文提出了一种基于相位中心偏移方位多波束的宽测绘带星载SAR实现方案。
- Regarding the AESA, the calculation of phase center will be more convenient if coordinate is changed properly. 对于有源相控阵，适当的坐标变换可以大大方便计算主瓣宽度范围内的相位中心。
- It is very important to measure the phase center quickly and efficiently during the course of researching and manufacturing the ultra-wideband antenna. 快速有效的实现超宽带天线相位中心的测量,在超宽带天线研究和研制过程中非常重要。
- Based on the deep study of displaced phase center algorithm, an improved movement error estimation algorithm for multi-hydrophone SAS was proposed. 在深入分析位移相位中心算法的基础上，提出了一种改进的多接收元合成孔径声纳运动补偿算法。
- Considering the geometry distribution of satellites,the effects of phase center variation on fix coordinates of the single point and on baseline solutions are deduced at first. 在考虑卫星几何分布情况下,首先研究了相位中心变化对单个点位坐标的影响,然后推导了相位中心变化引起的基线矢量的偏差计算公式。
- The echo model of moving target is established based on three channels with the slant-placed antennae in terms of the equivalent phase center principle. 利用等效相位中心原理建立了天线斜置情况下三通道运动目标回波信号模型，给出了天线倾斜角对动目标检测、最小可检测速度和盲速的影响。
- This is just an approximate figure. 这仅仅是个近似值。
- The differences of antenna phase center vertical component deviations of all combinations were figured out and the mm-level measuring precision was achieved when Bernese software was used to process the data. 用Bernese软件进行数据处理时;计算出了各种组合天线之间的相位中心垂直分量偏差的差值;获得了毫米级的精度.
- The approximate number of boys in the school is300. 这所学校男生数约为三百名。
- The cost will approximate two million dollars. 该项费用差不多达两百万元。
- The paper provides the reference for system design and further studying on imaging algorithm of displaced phase centers multiple azimuth beam SAR. 本文为系统设计和进一步研究天线相位中心偏移方位多波束系统的成像处理方法提供了参考.
- The 3D coordinates of the antenna phase centers are calculated by the collinear equations and backward intersection algorithm. 将转换参数代入待测点坐标方程后,计算得到天线中心在测量坐标系下的实时三维坐标。
- SAR/DPCA(Displaced Phase Center Antenna) SAR／DPCA
- The approximate time of their arrival will be five o'clock. 他们约於五点到达。
