The near and far field properties of line current of arbitrary shape is demonstrated in this example 本例以赫芝电偶极电磁场合成之近似结果，验证偶极天线远场及近场之特性。
Moreover , taking on the rayleigh integral the far field acoustic pressure and the directivity formula is obtained 并对其声场远场采用瑞利积分推导了一般表达式和指向性公式。
3 . the acoustic wave impedance coefficient is recovered from the incomplete data of the far field pattern 对于系数反问题进行了研究，利用远场模式的不完全数据反演声波阻尼系数。
In the far field impsar application or if the relative bandwidth of the system is not very large , w - k is also equivalent to b - p 在小积累角或远场条件下， -算法与b - p等效。
And the results show that slice muscle tissue can make the incident laser beam generate obvious diffraction phenomena 结果表明，激光束经过肌肉组织后，能在远场处产生明显的衍射条纹。
Understanding of near and far - field acoustics is important in achieving the required response in specific applications [ 3 . 54 ] 在特殊应用中为得到所需要的响应必须掌握近场和远场声学特征。
Verification of differences of characteristics of electromagnetic field image and radiation pattern in the near and far field are demonstrated 验证电磁场影像及场型特性在近场与远场中之差异。
( 5 ) the near field and radiation field of flow noise are analyzed , and the noise reducing features of riblets are deduced ( 5 )在分析流噪声的近、远场特性的基础上，进一步研究条纹表面的降噪特性。
Further applications of remote field eddy current technology are restricted by some disadvantages such as weak signal , over - long sensor 摘要远场涡流检测由于信号微弱、探头过长等缺点限制了其进一步应用。
Remote - field eddy current - based non - destructive inspection technology has been widely used in advanced nations with significant effectiveness 远场涡流检测技术在国外发达国家中已充分应用于现场，且收效显著。
