beam width造句

• Vertical beam width
  垂直波束宽度
• Antenna beam width
  天线波束宽度
• It is important to eliminate or degrade the effect caused by the beam width of echo sounders and reflect the true seabed
  为提高海底地形的测量精度，应消除或减弱波束角效应影响。
• 3 - dimension parameters of 2 - 4 targets can be jointly estimated as long as the direction intervals are greater than half beam width
  在目标方位间隔大于半波束宽度时，可实现2 4个目标的三维参数联合估计。
• In actual radar antenna design several thousand elements could be used to obtain a high - gain antenna with a beam width of less than two degrees
  实际的雷达天线设计为拥有数千个单元能够获得高增益使波束宽度小于2度。
• Lasers and laser - related equipment - test methods for laser beam widths , divergence angles and beam propagation ratios - general astigmatic beams
  激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.一般象散束
• Lasers and laser - related equipment - test methods for laser beam widths , divergence angle and beam propagation ratios - part 2 : general astigmatic beams
  激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.第2部分:一般像散束
• Lasers and laser - related equipment - test methods for laser beam widths , divergence angles and beam propagation ratios - stigmatic and simple astigmatic beams
  激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.无象散和简单象散束
• The paper studies three key problem of base station array antenna for mobile communication , controlled radiation pattern , beam width and passive intermodulation
  本文研究移动通信基站天线中的三个关键问题，波束赋形、波瓣宽度、无源交调。
• Lasers and laser - related equipment - test methods for laser beam widths , divergence angle and beam propagation ratios - part 1 : stigmatic and simple astigmatic beams
  激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.第1部分:无象散和简单象散束
• However its wave beam width is wide . after scholars several dozens years research , the beamforming technology obtained a huge development . many high resolution beamforming algorithms have appeared
  经过学者们几十年的研究,波束形成技术得到了巨大的发展,出现了许多高分辨率的波束形成算法。
• The theoretical expression of the critical angle is acquired , showing that it rises with the increase of the depth and period of modulation of refractive index . also , it increases as the beam width decreases
  从理论上得到了该临界角的表达式,它随折射率调制周期、调制深度的增加而增大,且光束越窄临界值越大。
• Except all the advantages above , the narrow beam width leads to challenges on pointing , so it is very important to make effort on the study of acquisition , pointing and tracking - apt
  而窄的激光发射光束导致了光束对准中许多技术上的挑战，对捕获、对准和跟踪（ acquisition 、 pointing 、 tracking ? apt ）技术的研究也就显得尤其重要。
• Based on the requirement , a base station array antenna of which beam width in h - plane is 45 is made . the relationship between the size and the performance of array antenna is researched . the antenna is tested and is proved eligible
  根据实际要求，设计一副水平面波瓣宽度为45的基站阵列天线，讨论天线尺寸与性能指标的关系，对天线进行测试，达到了设计要求。
• Energy distribution involves many radar ' s parameters , such as peak power of transmitter , maximum pulse width , antenna gain , rotating speed of antenna , beam width , covering range of elevation , maximum height and range and so on
  能量分配牵涉到雷达系统的各种重要参数如发射机峰值功率、最大发射脉宽、天线增益、天线转速、波束宽度、仰角覆盖范围、最大高度覆盖、最大作用距离等。
• The frequently used parameters such as the power in bucket ( pib ) , the beam width , the curvature radius , the far field divergence , the m2 - factor , the rayleigh length and the kurtosis are calculated in term of the intensity moments
  第二章用强度矩的方法研究了hchg光束，研究了hchg光束的pib系数、陡峭度在传输过程中的变化以及偏心系数b和厄米多项式阶数m对光束质量的影响。
• The focusing properties of gaussian beams through a compound optical system are discussed . based on the matrix optical method , formulae of the beam width at the focal plane and imaging distance of focused gaussian beams through the system are derived
  讨论高斯光束经复合光学系统的聚焦特性，利用矩阵光学方法，推导出了高斯光束经复合光学系统聚焦后束腰宽度和像距的计算公式。
• Parabolic antenna in a widely used is tracking antenna area , by use the optimum design , it may produce a very narrow beam , it ' s tracking precision is high , but because it ' s beam width is very narrow , the searching target is very difficult
  摘要抛物面天线是火控雷达中普遍使用的一种跟踪天线，通过系统优化设计，可以形成很窄的波束，所以其跟踪精度很高，因为其波束很窄，所以搜索发现目标困难。
• The beam width is stretched . the algorithm performance has the very big weaken . but the convention beamforming algorithm performance is stabler , time delay unbalance , time domain sampling , plane wave supposition and array element the influence which creates to it is not big
  通过比较,高分辨率算法在考虑上述情况后,波束方向出现偏差,束宽被展宽,幅度有很大的衰减,性能明显下降;而常规波束形成算法的性能较稳定,延时失配、时域抽样、平面波假设和基阵的幅相不一致对其造成的影响不大。
• Chapter 2 : using a so - called variance matrix , we studied the propagation and the focusing characteristics of the paraxial light beams . the quantities characterizing the gross features for a paraxial optical beam , such as the beam width , the divergence , the curvature radius of the wavefront , the complex beam parameter q . and the beam quality factor , are related by using variance matrix
  第二章：阐述了常数折射率介质中光束的传输和聚焦，建立了表征傍轴光束总的特征的量，如：束宽、衍射发散角、波前曲率半径、复光束参数q与变换矩阵的关系，得到了光束质量因子和变换矩阵行列式的定量关系。