narrow beam造句

• He then shines a narrow beam in horizontally through the pinhole .
  然后他通过小孔水平地射入一窄光束。
• Narrow beam injection laser
  窄束注入式激光器
• The narrow beams of sound advertise sale items at the store or restaurant and feature promotional material
  这个狭窄的声音柱在商场或餐馆做广告销售商品并播放促销内容。
• Radar sets generally employ large antennas to produce narrow beams in much the same way as a search - light reflector
  通常雷达采用大型天线以产生狭窄波束，其方法基本上与探照灯反射镜相似。
• If the broadband signal is dealt with the narrow beam former , the serious disorder of the signal will be occurred
  如果简单的用窄带波束形成器处理宽带信号，会使信号产生严重的畸变，这就提出了宽带波束形成的问题。
• They not only have the quality of slow decay , but also narrow beam and focused energy , which are widely used in military and communication
  慢衰减电磁波的衰减比一般电磁波慢，可以实现较大的探测深度；由于它的频率高，可以实现较高的分辨率。
• This paper mainly discusses the vital part discrimination of the near - field target by using target acoustic imaging method , which uses dense narrow beams based on high frequency system
  本论文主要研究了基于高频体制下利用密集窄波束形成目标图像，进行近场目标精确识别。
• 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。
• However , entrainment can , if applied with appropriate power and frequency , seriously degrade the ability of targeted people to function , and by using the higher radio frequencies , can be focused into a fairly narrow beam
  不过，诱导作用可以，如果应用适当的功率和频率，可以严重退化目标人群的身体机能，并采用较高的无线电频率,可以集中到一个相当狭窄的光束。
• 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。
• Compared with microwave communication , space optical communication has much superiority : much greater communication capability , narrow beam , good direction , much greater power density functions , lesser antenna size and whole mass , and high capability of anti - electromagnetism and secrecy
  与微波通信相比，空间光通信具有很多优点：通信容量可以显著增大；发射光束窄，方向性好，功率密度显著增加；天线尺寸小，系统质量相对小；抗电磁干扰，保密性强等等。
• If we tracked satellite by the tradition narrow beam antenna , that should caused the jumping tracking between multi - aircraft . that is difficult to achieve by the immense antenna boot and the follow - up system . using digital beam forming realize aircraft target tracking and controlling should be best means to resolve this problem
  随着我国多星测控系统的发展，在一个测控站作用范围内将出现多星，同时要求地面站对多星同时进行跟踪测控；如果采用传统的窄波束天线对目标进行跟踪测控，必然导致天线在多个飞行器之间进行跳动跟踪，这对于庞大的天线引导、伺服系统来说难以实现，采用数字波束对飞行器目标进行跟踪测控是解决此问题的最好方法。
• Smart antenna has been widely researched in communication and signal processing , the adaptive beamforming algorithm is the key technique of smart antenna . it could adaptively steer the array directional pattern to form the main narrow beams with high gain in the direction of the users " signals while deeply nulling the interference signals . it is an effective way to realize the optimal receiving of the interesting signals
  智能天线技术是目前通信和信号处理等领域的研究热点，自适应波束形成算法的研究是智能天线的一个关键技术，它能够自适应地控制天线阵方向图在用户信号方向产生高增益窄波束，在干扰信号方向产生较深的零陷，是实现用户信号最佳接收的有效方法。