1) beam pointing error
波束指向偏差
1.
This paper aims at solving the problem of tracking beam and main beam pointing error in multi-planar antenna SOTM caused by different frequency between communication and tracking signal,the fundamental of tracking beam pointing error is analyzed,and a scheme based on phase-compensation technology applying.
文中针对多板天线"动中通"系统由于通信内容和信标信号间的频率差异造成的跟踪波束和通信波束指向偏差问题,分析了跟踪波束指向偏差产生的基本原理,提出了一种基于延时线加两级移相器相位补偿技术的误差修正方案,并通过理论推导和Matlab仿真,证实了方案的可行性和有效性。
2) Beam direction deviation
光束指向偏差
4) pointing error
指向偏差
1.
Finally tracking error and pointing error are defined.
通过Zernike多项式将反射镜热变形和光束波前畸变联系到一起,分析了热变形对光束波前的影响,并得到了反射镜热变形引起的波前畸变表达式,进而得到了经反射镜接收的光束和发射的光束在相应接收面的光强分布,并定义了捕获偏差和指向偏差。
2.
Based on the on-orbit modification model of pointing error for geostationary imager,several important parameters,including lowest star brightness level,stars and spatial positions for staring observation,are figured out.
在建立基于恒星观测的成像仪指向偏差在轨修正模型的基础上,提出了模型中若干关键参数(包括最低观测星等、待观测恒星及成像仪凝视观测位置等)的选取方法。
5) beam-steering
波束指向
1.
In order to solve the problem of pointing deviation of phased arrays caused by the quantization phase of digital phase shifters, this paper proposed zero mean phase error method and investigated how the method affects the arrays beam-steering accuracy, and an effective formula was developed.
受数字移相器量化相位影响,相控阵天线波束指向精度偏离预定指向。
2.
The condition of clock asynchronization that causes maximum effect on beam-steering is given,and a calculation formula of beam pattern is obtained.
分析了数字T/R组件中,由于各路ADC的输入时钟不同步对波束形成的影响,给出了对波束指向影响最大的时钟不同步的情况,并推导出此时的方向图表达式。
6) beam direction
波束指向
1.
This paper analyzes the effect of amplitude phase errors on sidelobe level and beam direction in digital beam forming system.
针对旁瓣电平、波束指向等指标分析了幅相误差对数字波束形成系统的影响。
补充资料：波束制导
见遥控制导。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条