| 1. | Research on sound radiation modes
对声辐射模态的讨论 |
| 2. | Numerical analysis of coupling from core mode to radiation mode in long period fiber gratings
长周期光纤光栅及其在通信传感领域的新应用 |
| 3. | Because radiation modes are orthogonal each other , the corresponding sound power of each order radiation mode is completely independent
声辐射模态相互正交，每一阶声辐射模态下的声功率相互独立。 |
| 4. | That is to say , in order to measure the adjoint coefficients of sound radiation modes , we should design the particular shape of error sensor
因此我们必须设计出误差传感器来测量所需控制的声辐射模态伴随系数。 |
| 5. | Both the two algorithms can be applied to adaptive arrays working on radiation mode , thus greatly improving radar " four - anti " capabilities
这两种算法均可应用于自适应阵列的发射模式，从而能大大提高雷达的“四抗”能力。 |
| 6. | Based on the acoustic radiation mode analysis , the transfer matrix relating the pressure at every field point to normal component of surface velocity is formed
摘要基于声辐射模态分析，建立了外部场压和结构表面振动速度之间关系的传递矩阵。 |
| 7. | The total sound radiation power can be reduced by counteracting the adjoint coefficients of sound radiation modes of the first n radiation modes
声辐射模态伴随系数与对应的辐射声功率成正比。通过抵消前n阶声辐射模态伴随系数，就可以使总声功率降低。 |
| 8. | The dgeu noise is made up of multiple sound sources . in light of the noise radiation mode , it can be classified into the aerodynamic noise and the surface radiation noise
柴油机噪声是一个由多种声源构成的复杂声源，按照噪声辐射方式，柴油机噪声可以分为空气动力噪声和表面辐射噪声。 |
| 9. | People are interested in the study of asac system based on the radiation modes of radiation structure in recent years , and the system can reduce sound radiation power by controlling radiation modes
其中以声辐射模态为基础的asac系统是近年来的研究热点。这种方法是通过声辐射模态的抑制来使结构的辐射声功率降低。 |
| 10. | Abstract : it is observed that the sommerfeld ' s formula for a progressive spherical wave is not covariant with respectro the rotation of the coordinate system . it contains complex partial waves that are not physical . the standing wave representation of the same formula is shown to be covariant and physical . it is applied to solve the boundary value problem of fiber optics . the radiation modes as well as the guided normal modes are obtained in closed forms . the intensity distribution in various modes is obtained . it is remarked that the mode of critical refraction is missing
文摘:说明了球面行波的索末菲公式在坐标转动下不协变.证明了球面波的驻波表示是协变的，因而是一个物理的关系式，故适用于圆柱坐标中各类波动方程的定解问题.作为一个例，应用于光纤光学，导出了受导简正模和辐射模的表达式，以及各模式的强度分布 |
