• Then, based on defining three conceptions called as the second order spectrum, two theorems about the second order spectrum were proven.

    然后,以定义三个叫做二阶谱的概念为基础,证明了两个关于二阶谱的定理。

    youdao

  • The nonlinear Schrdinger equation leads to a second order nonlinear difference equation, and we obtain transmission spectrum of wave by iterating the difference equation.

    把非线性薛定谔方程转化成二阶差分方程,通过迭代此差分方程得到透射谱。

    youdao

  • For a given dispreading distance, the widths of the two spectrum regions increase until overlay when second-order dispersion approaches zero.

    对给定的传输距离,随着光纤向零色散附近靠近,两个频谱区谱宽增加直到相互重叠。

    youdao

  • The effects of group-velocity mismatch and dispersion, third-order nonlinear phase modulation on pulse shape, spectrum distribution and conversion efficiency of second-harmonic pulse were discussed.

    详细讨论了群速度失配、群速度色散和三阶非线性相位调制效应对倍频光脉冲波形、光谱及转换效率的影响。

    youdao

  • The fracture manner of PPO was obtained through analysing some fragment peaks of compounds in the second - order mass spectrum.

    并在二级质谱中通过对一些化合物碎片峰的解析,得到了PPO的裂解方式。

    youdao

  • Second, a special 2-D the fourth-order time-average moment spectrum is defined to estimate frequency in zero mean multiplicative and additive noise.

    定义了特殊的二维四阶时间平均多矩谱来估计信号频率。

    youdao

  • Second, a special 2-D the fourth-order time-average moment spectrum is defined to estimate frequency in zero mean multiplicative and additive noise.

    定义了特殊的二维四阶时间平均多矩谱来估计信号频率。

    youdao

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