摘要
本文综合介绍了固体潮理论值的一阶微商值的四种计算方法:分波法、一阶差分法、天顶距微分法和插值微分法。文中给出了各种方法对微商值及其拟合检验的对比计算结果,讨论了一阶差分法的差分间隔和插值微分法的插值间隔。结果表明,在固体潮资料的拟合检验计算中,固体潮理论值的一阶微商的最优计算方法是天顶距微分法和插值微分法,差分法中,△T的取值不宜小于1秒。
Four computation methods of first order differential quotient value for the theoretical earth tide—wave separation, first order difference, zenith distane differential and interpolation differential—have been introduced. The results of various methods compared with differential quotient values and fitting testhave been shown. The interval of first order differential method and the interpolation differential method are discussed. The results have shown that the optimum computation method of first order differential quotient values for the theoretical earth tide is the zenith distance differential method or the interpolation differential method in the fitting test of the earth tide data, and the value of △T should be greater than 1 sec in difference method.
出处
《华北地震科学》
北大核心
1990年第2期31-36,共6页
North China Earthquake Sciences
