您要查找的是不是:
- null depth difference beam 差波束零深
- The factors which have influence over the null depth and zero point position of two basic microwave antenna difference beams are analyzed theoretically from the point of engineering application. 从工程应用的角度出发,在理论上分析了影响两种基本类型微波天线差波束的零值深度、零点位置等指标的因素。
- null depth of difference beam 差波束零深
- Numerical results show the effectiveness of the proposed technique, the null depth levels obtained are lower than those reported in the literatures.Nulls are imposed both at the specified directi... 计算实例说明提出的算法十分有效,获得了比已有文献更低的零深,并且可以在主瓣附近或旁瓣区生成零点,也可以在对称主瓣两侧方向生成零点。
- Fourth, the distortions in micro stereovision system are analyzed, and three kinds ofdistortions, the rotation of CCD image planes, the depth difference in object space of SLM, the distortions of an optical system, are considered mainly. 第四部分研究了视觉系统中的畸变问题,考虑了CCD像面旋转、物空间的深度变化和光学系统畸变等三类畸变。
- We analyze the pattern function of DBF in subarray under the ideal condition and with channel mismatch, and give the pattern functions of sum and difference beam. 基于恢复理想信号频谱的逆滤波原理,利用通道均衡法对接收通道的失配进行了校正。
- On the basis of predefined waveguide parameters, we use the finite difference beam propagation method to analyze the effect of the parameters on the device. 最后根据所确定的器件结构参数,用有限差分光束传输法分析了器件结构参数对器件性能的影响。
- The optimum depth difference that represents stratum interface best can be fitted by comparing six microresistivity curves of six arm diplog with the use of correlation and optimization. 采用相关对比与最优化原理相结合的方法,对比六臂地层倾角测井的六条微电阻率曲线,可以拟合一组最能代表地层层面的最优高程差。
- The alternate-direction implicit finite difference beam propagation method (FD-BPM) is used to analyze the two-dimensional (2D) symmetrical multimode interference (MMI) couplers. 交替方向隐式有限差分波束传输法被用来分析二维限制对称多模波导干涉耦合器。
- If this places not to suppress the good steam ironing, Can appear the depth different trace and the punctual trace in the fabric surface. 如果这些地方在压制的时候没有蒸汽熨烫好,就会在织物的表面出现深浅不同的痕迹和点状痕迹。
- The stress distribution and effective refractive index of waveguide fabricated by this approach are calculated using finite element and finite difference beam propagation method, respectively. 采用有限元法和有限差分束传播法分别计算了存在这一矽层时的波导应力分布和有效折射率。
- The various states of the switches were simulated and analyzed using the finite difference beam propagation method (FD-BPM),the structure parameters of the switch were also designed and optimized. 用FD-BPM方法对其各个状态进行了模拟和分析,并对器件的结构参数进行了优化设计。
- The annealed proton-exchanged LiNbO3 Y-branch optical waveguide with a tapered transitional section is simulated by the three-dimensional finite difference beam propagation method. 利用三维有限差分光束传播法,对具有锥形过渡波导的退火质子交换铌酸锂Y分支光波导进行了数值模拟。
- The beam uniformity obtained by different beam homogenizer is compared by using CCD laser beam analyzer. 平顶因子则描述了整个光斑能量分布范围内的均匀性问题。
- Whether it rains or not makes no difference to me. 下不下雨对我来说都一样。
- It is shown that the threshold ratio of the laser power to the beam spot diameter P/d for penetration welding is consistent with different beam spots. 结果表明,以激光功率与光斑直径之比作为深熔焊接阈值的表征参量,深熔焊接阈值与光斑大小无关;
- This creature lives in the depth of the ocean. 这种生物生活在海洋深处。
- The state or quality of being null. 无效无效的状况或性质
- Rings of LED light with different beam angles. According to measurement necessary, switch independently dispart 16 sections. 环形二极管,带有不同的光束角度,可根据工件需要分16个区域独立开合。
- For the phased array radar system at subarray level employing monopulse technique, it requires to suppress sidelobe of sum beam and different beam simultaneously. 对于采用单脉冲技术的子阵级相控阵雷达系统,需要同时对和、差波束的旁瓣进行抑制。