sigu meaning in English

四古

But the complex analytical signal ( cas ) theory can erase this spatial sigu - larity . in this section , gauss , hyperbolic and lorentz pulsed gaussian beam have been derived and compared svea and cas solution by numerical simulatio n . in section 3 , by using fourier transform technique and applying the paraxial approximation in frequency domain , we derive an integral solution for the transverse and longitudinal components of the light field propagating in free space
接着，考虑了几种特殊的脉冲gauss光束( pulsedgaussianbeam ) ，结果显示，在此情况下缓变包络近似( slowly - varyingenvelopeapproximation )理论已不再有效，其失效的原因是，该理论导致了脉冲光束解的空间奇异性，并使脉冲光束不再具有符合物理意义的光束行为，而通过复解析信号的分析方法可以消除这种空间奇异性。