It shows in theory that the frequency domain sounding in near zone of the line current source is possible. 通过对计算结果的分析,在理论上说明了线源频率域近区(NZ)测深的可行性。
Study the near zone blasting 、 the grout curtain blasting destructive effect mechanism emphatically in the safety control standard research aspect of cofferdam demolition blasting. Discuss its blasting vibration safety control standard. 3. 在围堰拆除爆破安全控制标准研究方面,着重研究了爆破近区(NZ)、帷幕灌浆的爆破破坏作用机理,并探讨了其爆破振动安全控制标准。
Study on the Interaction Between Scatterer and Aperture Antenna in The Scatterer's Near Zone(NZ) 散射目标近区(NZ)口径面天线与目标相互影响的研究
This method can be used not only for regular region, far zone, and harmonic field, but also for singular region, near zone, and transient field. 这一方法既可用于正则区域的场,又可用于奇点场,既可用于远区场,又可用于近区(NZ)场,既可用于时谐场,又可用于瞬变场。
Thirdly, one numerical stimulation method-FDTD ( fmite-Difference Time-Domain ) and the transformation of near zone to far zone are introduced, and then the program is verified. 接着介绍了时域有限差分法(FDTD)及其近场到远场的变换公式,并对自编的FDTD计算程序进行了验证。