In this paper, we present a "harmonic group clean algorithm" to obtain the estimation of the parameters of the periodic signal.
本文提出了一种“谐波组清除算法”来估计周期信号的参数。
This paper analyzed how to solve the harmonic problem produced by frequency converter using active filter on amine production tine in Anhui Huaihua Group.
并分析了淮化集团甲胺生产线如何采用并联有源滤波器，解决因变频器所导致的谐波问题。
On the basis of Longkou Mining Group mine harmonic pollution, and harmonic pollution to electric network power equipment and power supply into the effect and harm.
本文根据龙矿集团矿区电网谐波污染状况，及谐波污染给矿区电网供用电设备和供电电能质量带来的影响和危害。
In this algorithm, a "iterated harmonic-group clean algorithm" is presented to obtain the estimates of the parameters of the harmonic signal based on FFT.
其中提出了一种基于FFT的“谐波组迭代清除算法”来估计谐波信号的参数，并根据“谐波图”的值来确定谐波信号的个数。
In this paper, a decoupled parameter estimation (DPE) algorithm for estimating parameters of the harmonic-group signal in colored noise is researched.
本文研究了一种估计有色噪声中多组谐波信号参数的去耦参数估计算法。
The harmonic extraction practice according to the ore features and the results in Xuefeng Cement Group Corporation are described.
介绍雪峰水泥集团矿山根据矿石特点实行均化生产的实践及效果。
The effects of group-velocity mismatch and dispersion, third-order nonlinear phase modulation on pulse shape, spectrum distribution and conversion efficiency of second-harmonic pulse were discussed.
详细讨论了群速度失配、群速度色散和三阶非线性相位调制效应对倍频光脉冲波形、光谱及转换效率的影响。
The results show that group-velocity mismatch broadens the width of third-harmonic pulse.
结果表明：群速度延迟使三倍频光脉冲展宽；
The results show that group-velocity mismatching is the main reason of the broadening of the second harmonic pulse and could lead to the decrement of conversion efficiency.
研究结果表明，群速度失配会导致二倍频光脉冲宽度的增大和转换效率的降低，非线性相位调制使二倍频光脉冲形状发生畸变，降低转换效率。
The results show that group-velocity mismatching is the main reason of the broadening of the second harmonic pulse and could lead to the decrement of conversion efficiency.
研究结果表明，群速度失配会导致二倍频光脉冲宽度的增大和转换效率的降低，非线性相位调制使二倍频光脉冲形状发生畸变，降低转换效率。
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