higher harmonics

An Analytic estimative formula of FFT leakage error for non-integral period sampling is analyzed and derived and in the case of the input signal including fundamental wave and higher harmonics, a new calculating method of realizing the self-adaptive Integral period sampling with FFT iterative calculation is obtained.

分析推导了非整周期采样时FFT泄漏误差的解析估计公式，得出了在输入信号含基波和高次谐波分量的情况下，利用FFT迭代计算来实现自适应整周期采样的一种新算法。

Based on the fact that electric power is output from the HF terminal of the frequency converter, this paper analyzes the causes and harms of higher harmonics, as well as the reasons for the power cable oscillation radiation during transmission and their solutions.

根据变频系统高频输出电能特点，分析高次谐波产生原因和危害，并给出在电力电缆传输过程中产生振荡辐射的原因和解决方法。

Analysis of Higher Harmonics for FEL with a Novel Electrostatic Wiggler

静电摇摆器自由电子激光器的高次谐波分析