查询词典 harmonic component

For example, although the fundamental of a trumpet is centred around 1200Hz, it generates strong harmonic components beyond 8kHz for the upper notes, with the implication that the harmonic series continues well into the ultrasonic region.

举个例子：虽然小号的中心频率在1200Hz左右，但它可以演奏在8KHz左右的高音，并可衍生出超声波范围的泛音。

The author develops a set of computing software about harmonic synthesis and harmonic analysis based on the methods this thesis puts forward.

以本文提出的理论和建立的数学模型为基础，编制了一整套重力场球谐综合与调和分析计算软件。

On the basis, this paper provide two harmonic current detect methods, and do deep research on the using zero current divided method to achieve harmonic current and instantaneous reactive current real time detecting method.

在此基础上，提出了两种基于该理论的谐波电流检测方法，并对采用零线电流分离法实现的谐波电流及瞬时无功电流的实时检测方法进行了深入研究。

Active power filter ; instantaneous harmonic current detection ; harmonic measuring ; virtual instrument ; LabVIEW

有源滤波器；瞬时谐波电流检测；谐波测量；虚拟仪器； LabVIEW

The paper introduces an improved harmonic and reactive current detecting method based on there-phase reactive current using instantaneous reactive power theory. By using matlab, simulation model is built, and the results show that this model can exactly detect harmonic and reactive current in time and it is feasible in DSP system.

本文在三相瞬时无功功率理论的基础提出了一种改进的单相无功电流检测算法，并建立了仿真模型，仿真结果表明：该算法可以及时、准确地检测出三相电路中的谐波电流和无功电流，同时也验证了此算法在DSP系统中的可行性。

Compare three strain harmonic test method which is based on the instantaneous harmonic and reactive power theory.

比较了基于瞬时无功功率理论的三种谐波检测方法。

In this paper, a harmonic detection method based on instantaneous reactive power theory is discussed. And then, MATLAB models for the harmonic detection are built and the simulations are carried out.

本文分析了基于瞬时无功功率理论谐波检测方法的基本原理，建立了基于MATLAB的谐波检测系统模型并进行了仿真分析。

By combining with Poincare mapping and phase plane plot, the simple harmonic, non-harmonic monocycle, subharmonic, quasi-periodic and chaotic response arised in the system under different backlas...

通过分析各齿轮副的动载荷系数变化规律，讨论了各齿轮副啮合状态在非冲击、单边冲击以及双边冲击状态之间的转化过程和齿侧间隙的关系。

Especially, we derive the Pohozaev identity for p-harmonic equation from which we obtain the corresponding nonexistence of nontrivial solution for p-harmonic equation with critical growth.

本文考虑了几类椭圆方程的Pohozaev恒等式，特别是对p-调和方程在两种边界条件下的恒等式作了详细的演算，并利用这些恒等式得到了一些解的非存在性结果。

A new method for assessing harmonic impedance and the harmonic emission level is preseented, which is based on the partial least-squares regression.

提出了一种基于偏最小二乘回归的系统谐波阻抗及用户谐波发射水平的估计方法。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我