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- antenna directivity pattern 天线方向性图
- antenna directional pattern 天线方向图
- antenna direction pattern 天线方向图
- The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed. 导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式,分析讨论了这些公式的应用范围。
- I am so ashamed of confusing the two concept:directivity pattern and directivity coefficient. I感到很混淆这两个概念:指向模式和方向性系数惭愧。
- This paper analyses the pattern function of DBF in subarray. The designing method for directivity pattern is given and the condition of producing the grating lobe is discussed. 详细分析了由子阵构成的DBF的方向性函数特性 ,给出了方向图的设计方法 ,并讨论了其栅瓣产生的条件。
- Besides what open a hard outfit store pilot, 100 how to reside still plan to try small-sized storefront, door inn antenna direct and outspread reach life village. 除了开出硬装店的试点,百安居还打算尝试小型店面,将门店触角直接延伸到生活小区。
- This paper analyses the pattern function of DBF in subarray.The designing method for directivity pattern is given and the condition of producing the grating lobe is discussed. 详细分析了由子阵构成的DBF的方向性函数特性,给出了方向图的设计方法,并讨论了其栅瓣产生的条件。
- The directivity pattern of the sound field can be changed by adjusting the number of axial stiffeners when the axially driving force is exerted on one of the stiffeners. 当径向激励力作用在纵肋上时适当调整均布纵肋的数目可以改变平底圆柱壳辐射声场的指向性。
- antenna direction patterns 天线方向图
- Third, multi-duty direction pattern microminiaturized attitude control module. 三是多任务指向模式的微型化姿控模块。
- The poor design of the enclosures could cause the irregularity in frequency responses and directivity patterns. 不良的设计会导致频率响应不平缓,且频响随空间角度出现较大变化。
- In this paper, a closed chamber technique for measuring the complex free field sensitivity and directivity patterns of line array is described. 本文提出了一种在密闭管中测量线阵的自由场复数灵敏度和指向性图的方法。
- Method of fast estimating aperture antenna directivity and gain 口径天线方向性系数和增益的快速估算方法
- When the diffractive efficiency of the holograms in a VHM is not uniform enough and the SNR of the retrieved images is very low, the precision of direct pattern recognition will be very low. 当全息图的衍射效率极为不均匀,再现图像的信噪比极差时,直接识别的识别准确率极低。
- The more the integrated elements are and the larger the adjcent elements spacing is, the narrower the directional pattern beamwidth is. 阵列单元越多,相邻单元间距越大,方向图波束越窄。
- First, the transformational process from the directed pattern to the pening pattern, and to the synthetic pattern is researched. 首先,探讨了日本师范教育模式从定向师范教育模式发展到开放师范教育模式再到混合型师范教育模式演变的过程。
- integration of directivity pattern 方向图综合
- Reception improved because of the new antenna. 接受效果因有新天线而得到改善。
- Methods of Moment on Monopole Antenna Directivity With Ground Reflection 考虑地面反射时单极天线方向性的矩量法分析