We give two methods for constructing many linear complementary dual (LCD for short) codes from a given LCD code, by modifying some known methods for constructing self-dual codes. Using the methods, we construct binary LCD codes and quaternary Hermitian LCD codes, which improve the previously known lower bounds on the largest minimum weights.

中文翻译：

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二元LCD码、三元LCD码和四元Hermitian LCD码的构造

我们通过修改一些已知的构造自对偶码的方法，给出了从给定的 LCD 码构造许多线性互补对偶（简称 LCD）码的两种方法。使用这些方法，我们构造了二进制 LCD 代码和四进制 Hermitian LCD 代码，它们改进了先前已知的最大最小权重的下限。