中文摘要：

为解决动态谐波的瞬时参数估计问题,提出了一种瞬时谐波参数估计的新方法.假定信号的各谐波分量都分布在有限频带内,通过该信号卷积相应频带理想带通滤波器的冲激响应,即可得到信号的滤波输出,将各带通滤波器输出在零频率处展开,就能得到对应谐波分量的瞬时参数,从而实现该多分量信号的瞬时谐波参数估计.算例结果表明,该法能较好地完成动态谐波的瞬时振幅、频率估计,并具有良好的精度、实时性.

英文摘要：

In order to tackle the instantaneous parameters estimation of dynamic harmonic,a novel method is proposed for instantaneous harmonic parameters estimation.It is assumed that each harmonic component of a signal is spaced in frequency-limited domain in this paper.The output signal of the band-pass filter can be obtained via the signal convolution with the impulse response of an ideal band-pass filter.By expanding each filter output at the zero frequency,instantaneous parameter of the corresponding harmonic component can be estimated,and the instantaneous harmonic parameters estimation of multi-component signals can be realized.The results indicate that the method can archieve instantaneous amplitude and frequency estimation for dynamic harmonic,and it has high performance of precision and real-time utilization.