傅立叶系数 meaning in English
fourier coeffcient
fourier coefficients
Examples
- The methods to prove the termwise derivation and calculate the fourier coefficient
证明逐项求导公式和计算傅立叶系数的方法 - Abstract : a relatively direct method is expounded in this paper to prove the termwise differentiation of power series , and a simple method is expressed to calculate the fourier coefficient
文摘:用比较直接的方法证明幂级数的和函数在收敛域内可以逐项微分的公式；并得到了计算傅立叶系数的一种简便方法 - The paper presents another definition of dynamic phasor , i . e . , dynamic phasor . based on park transformer and points out the relationship between dynaxnic phasor based on park transformer and dynarnic phasor based on fourier coefficient which is deflned by another person
本文提出了park变换意义下动态相量的概念，并指出park变换意义下的动态相量与前人所定义的动态相量，即傅立叶系数意义下的动态相量之间的关系。 - Because of strong nonlinearity of the elastomeric damper , analysis of a transient signal is necessary in order to study the stability . it is desirable to have damping identification techniques , which are be fast , can handle a reasonable amount of sensor noise . three analyses are presented here
故本文介绍了三种阻尼识别的方法，即基于傅立叶系数的移动矩形窗法和基于希尔波特变换的方法，以及传统的基于fft的移动矩形窗法。 - Due to complicated continuous helicopter models and a wide range of constraints , numerical solutions on a mainframe computer have to take a long time . for a given set of initial helicopter states and flight parameters , optimal solutions are fitted by a fourier series . the coefficients of the fourier approximations are then interpolated as functions built by three - layer bp network with inputs of initial flight states and parameters
最后,由于直升机数学模型的复杂性,这给实时优化计算带来很大困难,本文研究了地面计算机计算的最优轨迹如何在机载计算机上实时显示,对飞行员的操纵提供参考,即把不同初始条件得到的最优轨迹曲线进行傅立叶部分级数化,得到傅立叶系数,选取合适初始条件作为变量,对这些最优轨迹曲线进行拟和,建立bp神经网络预测模型。