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瞬态信号的模型参数估计在许多领域占据相当重要的地位。本文利用高阶矩的性质,提出一种Q-slice马尔可夫ARMA模型双谱估计算法。仿真结果表明,该方法估计精度高,计算量小,即使在低信噪比的情况下,对瞬态信号也有较好的拟合效果.
Model parameter estimation of transient signals occupies a very important position in many fields. In this paper, by using the properties of higher order moments, a bispectrum estimation algorithm for Q-slice Markov ARMA model is proposed. The simulation results show that the proposed method has high estimation accuracy and low computational complexity, and has good fitting effect on transient signals even under low signal-to-noise ratio.