steering n. 1.掌舵;驾驶;转向。 2.指导,领导;操纵,控制。 a steering handle 舵把,方向盘。 current steering logic 电流控制逻辑。
beam n. 1.梁,栋梁,桁条;(船的)横梁。 2.船幅;(动物、人的)体幅。 3.(秤)杆,杠杆,(织机的)卷轴,经轴;(鹿角的)主干;车辕;犁柄;锄把。 4.(光线的)束,道,柱;【物理学】波束,射束。 5.(笑容、表情等的)焕现。 6.【无线电】有效播听范围。 7.【航空】信号电波,指向电波。 a beam of light 一束光线。 the common beam 标准秤;准则。 beam and scales 天平。 a beam of delight 高兴的表情,笑逐颜开。 an erector beam 【火箭】(发射时调整导弹位置的)千斤顶。 radio beam 无线电领航信号。 a landing beam 【航空】降落指示波。 abaft the beam = before the beam. a beam in one's eye 自己本身的大缺点〔与他人目中之刺相比,自己眼中有梁,源出《圣经》马太福音〕。 before the beam 【航海】正横前。 broad in the beam 〔口语〕臀部阔大。 fly the beam 【航空】按指向电波飞行。 fly the wet beam 【航空】顺着河流飞行。 kick [strike] the beam 1. (秤一方)翘起;过轻,不足抗衡,无足轻重。 2. 输,遭受失败。 off the beam 脱离航向,不顺利;不对头;做错。 on the beam 1. 【航海】与龙骨垂直地,正横地。 2. 在航向上;对头,做对。 on the port [larboard] beam 【航海】左舷正横前。 on the starboard beam 【航海】右舷正横前。 on the weather beam 【航海】迎着正横风。 ride the beam = fly the beam. vi. 1.辐射,发光,闪光。 2.微笑,眉开眼笑。 vt. 1.发射(光线、电波)。 2.向…放[播]送。 3.(用雷达)探测。 4.(用波束)导航(飞机等)。 beam the program at America 向美国播送节目。 the sun beaming overhead 红日当头照。 beam upon 看着…微笑。 beam with joy 眉飞色舞,笑逐颜开。
4 . study on the beam steering of phased array in far field 研究了相控阵的声波在远场的传播。
Design of beam steering system for vehicle mobile satellite communication 车载移动卫星通信中波控系统的设计
The fundamental principles underlying the concept of electronic beam steering are derived from electromagnetic radiation theory employing constructive and destructive interference 电子波束控制的基本原理来自于电磁场理论的相干作用。
For sound pickup , acoustic processing aims at the design of transducers or transducer arrays to achieve a durable directionality ( beam steering and width control ) as well as noise resistance 对于拾音,声学处理的目标是设计耐用的指向性(束调整和宽度控制)及抗噪声换能器或换能器阵列。
Beam steering characteristics of liquid crystal optical phased array ( lcopa ) is an important index evaluating its optical performance , and beam steering angle is the direct parameter indicating this 液晶光学相阵列的光束偏转特性是评价其光学特性的一项重要指标,而光束偏转角是直接评价这一特性的物理参数。
The beam steering angle is always small , about 2 ~ 3 , and high resolution and orientation precision are required , so a high - precision optical small - angle measurement technique and system is imminently required to develop 由于该光束偏转角一般比较小,大概在2 ~ 3 ,要求实现高的分辨力和定位精度,因此迫切需要研究一套高精度的光学小角度测量技术与系统。
The beam steering theory is studied to solve the problem that we can not get wider 3db bragg bandwidth and high diffraction efficiency at the same time in the optimum design of ln anisotropic acousto - optic deflector ( aod ) which is a crucial issue in the process to design an ao deflector . based upon the study of the unit cell structure of ln , the acoustic property and the optical property and the acousto - optic property are analyzed and presented 以最根本的铌酸锂晶体晶胞结构为出发点对铌酸锂晶体的声学、光学以及声光性质进行了推导和描述。并以此为基础利用克里斯托夫方程计算铌酸锂晶体中分别在xoz与yoz声光互作用平面上的本征速度与声离轴角之间的关系,并给出倒速度曲线。
Theory and experiments of bulk - wave acousto - electro - optical ( aeo ) device , involving one - dimension and multi - dimension , are systematically studied . the thesis includes the following contents : coupled - wave equation theory of aeo interaction , determination of the optimum operating mode of aeo device , geometrical relationships of the anisotropic acousto - optic interaction , design and experiment of the aeo device . finally , the optimum design of ao device with beam steering theory is also studied 论文主要研究内容包括:一维和多维声电光效应的耦合波方程及其衍射效率计算公式的建立、一维和多维声电光器件最佳工作模式的选择、声电光晶体反常声光互作用几何关系的计算、 ln一维反常声电光器件和kdp二维反常声电光器件的设计制作以及实验测试、正常与反常超声跟踪声光偏转器的优化设计。
By solving the christoffel equation , the relationship between velocity and angles is obtained , and the ultrasonic inverse velocity curve is illustrated . the dixon equations of ao diffraction on the xoz and yoz planes in ln crystal have been applied to obtain the geometric relationships of acousto - optic interaction . therefore , the beam steering theory is proved to be a possible way to do the optimum design of ln anisotropic acousto - optic deflector . the detailed parameter data and the figures on the xoz and yoz planes with the angle of incidence of - 5 degree are shown up , which will contribute to the desigh of aod 对铌酸锂超声跟踪反常声光偏转器进行优化设计,经研究计算得到了分别在入射角取- 5o时xoz与yoz工作平面中正负一级衍射中分别使用快切变波与慢切变波的情况下,优化设计铌酸锂超声跟踪反常声光偏转器的设计参数,对声光偏转器生产设计有实际参考意义。
百科解释
Beam steering (also spelled beamsteering or beam-steering) is about changing the direction of the main lobe of a radiation pattern.