In this paper, a new method is proposed for estimating the frequency of a complex sinusoidal signal in multiplicative and additive noise. The proposed method is based on the linear prediction property of the signals’ autocorrelation function. This frequency estimation method is a closed-form algorithm which can directly estimate the frequency without peak searching. The performance of the proposed frequency estimator is investigated by computer simulations. Simulation results demonstrate that the performance of the proposed technique is reasonable and is close to Cramer–Rao bound.

中文翻译：

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用于乘法和加法噪声中复正弦信号频率估计的闭式估计器

在本文中，提出了一种在乘法和加法噪声中估计复正弦信号频率的新方法。所提出的方法基于信号自相关函数的线性预测特性。这种频率估计方法是一种闭式算法，可以直接估计频率而无需搜索峰值。通过计算机模拟研究了所提出的频率估计器的性能。仿真结果表明，该技术的性能是合理的，接近 Cramer-Rao 界。