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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。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。该算法不仅计算简单并可获得较高的频率分辩率,而且对信号模型具有较强的鲁棒性。
This paper studies a decoupling parameter estimation algorithm for estimating the parameters of multiple harmonic signals in colored noise. In this paper, an FFT-based “Harmonic Group Iteration Scavenging Algorithm” is proposed to estimate the parameters of the harmonic signal, and the number of harmonic signals is determined according to the value of “Harmonic Graph”. The algorithm is not only simple and can obtain higher frequency resolution, but also robust to the signal model.