No convergent drawback of the weight vector due to choose the dispersion constant inaccurately in the normalized constant modulus algorithms (NCMA) is overcome.

该算法克服了在一般的常系数盲数字自适应算法中，由于估计幅值选择不合适，所造成加权矢量不收敛的缺点。

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This paper derived the relations between polarization dispersion and wave length from the dielectric constant perturbation theory.

本文从介电常数微扰理论得到极化色散与波长的关系。

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Then, the dispersion of the multi-clad fiber is obtained by solving the propagation constant and the equivalent refractive index of single-clad fiber which is equal to multi-clad fiber.

通过将多包层光纤等效为阶跃光纤，求等效阶跃光纤的传播常数与等效折射率，求得多包层光纤的色散。

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