directivity pattern
英
美
网络 指向性图案; 指向性图; 方向性模式; 方向图
双语例句
- The design and realization of projecting transducer directivity pattern field-testing instrument
发射换能器指向性现场测试仪的设计与实现 - The radiation directivity of a complicated conformal array of underwater acoustic transducers is presented based on the boundary element method. It includes the element directivity of each transducer, the natural beam pattern and the controlled beam pattern of the transducer array.
用边界元方法，给出了水声发射换能器共形阵各阵元的单元指向性以及基阵的自然波束指向性和束控波束指向性。 - The rupture directivity effect is due to rupture propagation and radiation pattern effects.
破裂方向效应是由破裂传播和辐射图效应引起的。 - Resonant Freqency and Directivity Pattern of Free-flooded Cylindrical Transducer with Holed End-caps
带孔盖板的自由液浸式圆柱换能器的谐振频率和方向性 - In the frequency region 0~ 800 Hz, the influence of the width and the height of the rings on the sound field directivity pattern are nearly same.
在0~800Hz频率范围内，环肋高度和宽度变化对声场指向性影响差别较小。 - The computational results of antenna's directivity pattern and S_ ( 11) parameters are compared and in good agreement with the experimental results. The results show that the methods of modeling and calculating are correct and valid.
给出了计算所得到的波导缝隙天线阵单元的回波损耗参数（S11）和方向图，通过与实验结果相比较，两者吻合得较好，从而证明了该分析模型和计算方法的正确性与有效性。 - 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 noise directivity pattern of the impinging jet from a 3 millimeters diameter axisymmetric convergent nozzle normally and obliquely impacting the large rigid flat plate was studied experimentally with different pressure rates and different nozzle-to-plate distances.
实验研究了3毫米口径轴对称收缩喷嘴在各种压比下射流垂直冲击和倾斜冲击坚固大平板产生的噪声的指向特性。 - The Application of Virtual-instrument in the Radar Directivity Pattern Measurement
虚拟仪器在雷达天线性能方向图测试中的应用 - Comparing the EM simulation and experiment results showes a good agreement in directivity pattern, VSWR and axial ratio of circular polarization.
对同轴馈源方向图、电压驻波比和轴比进行了测试，测试结果与电磁仿真结果比较吻合。 - In order to satisfy the requirement on array directivity, array efficiency and sidelobe level at the same time, a new pattern synthesis method is presented.
为同时满足对方向性系数，阵列效率，方向图旁瓣等参数的要求，提出了一种效率和旁瓣约束下的最优方向性综合法。 - In comparison with frequency domain processing, this method not only can improve the performance of directivity pattern remarkably but also have the advantage of easy design and low cost of computation.
相对于频域处理，在有效提高阵列方向图性能同时具有设计简单，运算量小等优点。