The optimum phase control code for beam pointing increases accuracy of beam pointing obviously.
利用这种控制码,波束指向精度提高了一个数量级。
The experiment results of laser output beam pointing stability by measured with CCD camera is prevented.
报导用CCD摄像机检测激光器输出光束的指向稳定性的实验结果。
However, the excursion of beam pointing versus frequency is deteriorated because of its dispersed aperture.
然而多子阵平板天线阵的离散口径会造成天线波束指向频率响应的恶化。
Error of laser beam pointing has severe influences on the received power and bit error rate in the link of inter-satellite optical communication.
卫星间光通信链路中对准误差对接收功率和误码率都有严重的影响。
The data show that the beam pointing deviation may in general be reduced in an order of two, and may be reduced at least in the order of one for 2-bit...
数据分析表明,指向偏离通常可降低至少两个数量级,即便数字移相器的位数低至2位,指向偏离也可降低一个数量级。
And to write programs using MATLAB to calculate its amplitude and phase weighted ideal pattern. 3, the antenna beam pointing to the formation of five different.
并且用MATLAB编写程序,计算了其幅度相位加权后的理想方向图。3、天线五个不同指向波束的形成。
Simulation results show that the method can reduce the excursion of beam pointing effectively, and the requirement of beam pointing accuracy for SOTM can be satisfied.
仿真结果表明,该方法可以有效减小天线波束指向漂移,满足卫星移动通信系统对天线波束指向精度的要求。
The dynamic light beam pointing technology is used to keep orientation of light beam invariable, and light can be focused around some a fixed position in the field of view.
动态光束定向技术用于使光束传播方向保持不变,进而将成像目标稳定在视场中的某一固定位置。
Based on the background of the research on the inter-satellite laser communication system, design and simulation of the laser beam pointing control algorithm have been done.
本文以空间光通信终端系统的研究为背景,进行了光束粗瞄控制算法的设计和仿真。
When SAR satellite compensates Doppler Shift with yaw steering, for beam pointing synchronization, formation maintenance and attitude control of concomitant satellite formation should be coordinated.
首先,简介主SAR卫星与伴随卫星编队所构成干涉测量系统的工作原理,当主SAR卫星施加偏航导引补偿多普勒频移时,为实现波束指向同步,伴随编队需进行构形与姿态的协同控制。
Pointing and focusing a laser beam on a target that is rocketing skyward at thousands of miles per hour is no easy task, but the Airborne laser is uniquely able to do the job.
对于飞行速度每小时数千英里的目标进行激光束瞄准和聚焦并不容易,但机载激光器是唯一能够完成这项工作。
Beam curve offset: the amount of height offset to apply to the projected beam to generate a smoother curve even when the beam is pointing straight.
(光束曲线偏移):投射光束时应用的高度偏移量,就算在光束径直指向时也能产生一个光滑的曲线。
Beam riding systems use a target tracker whose purpose is to maintain the antenna boresight pointing at the centre of the reflecting area of the target.
波束制导系统使用一个目标跟踪装置,它的目的是保持天线视轴指向目标反射的中心。
Ultrasonic has a good pointing, the attenuation in water is small, beam radio feature fine.
超声波具有指向性好,在水中衰减小,束射特性优良。
The transmitter beam is Gaussian for real satellite-ground laser communication system. The pointing jitter and atmospheric scintillation are the main noise sources for satellite-ground laser link.
实际星地光通信系统的发射光束为高斯型的情况下,跟瞄误差和大气闪烁是星地激光链路中的主要信道噪声源。
Final, improve of beam-pointing drift with digital delayer at elements or sub-arrays is given.
文章也给出了阵列单元或子阵设置数字延迟器后,扫描波束指向漂移改善的分析结果。
Laser beam acquisition, tracking and pointing (ATP) is one of key technologies for free space optical communication.
光束的捕获、跟踪和对准(atp)是自由空间光通信中必须解决的关键技术之一。
The motion pattern of a scanning point is studied in case a fixed laser beam is pointing at a rotating ball with fixed center.
研究了当用固定不动的激光束扫描球心固定的旋转球体时扫描点在球面上的移动模式。
The law of 2d scanning beam-pointing drift wideband working plane phased array is revealed in this paper.
揭示了平面相控阵天线宽带工作时,两维扫描波束指向漂移的规律。
The law of 2d scanning beam-pointing drift wideband working plane phased array is revealed in this paper.
揭示了平面相控阵天线宽带工作时,两维扫描波束指向漂移的规律。
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