噪声环境下信号的频率估计

Y. Li, K. Sugahara, T. Osaki, R. Konishi
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引用次数: 0

摘要

提出了一种基于正弦加性合成模型的声信号频率估计方法。在该方法中,利用一种扩展的LP方法,在多个延迟时间内估计信号和噪声中的频率。通过计算机仿真对该方法的性能进行了评价,并利用Cramer-Rao界估计了参数估计误差的最小方差。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On the frequency estimation of signal in the noisy circumstance
We present a frequency estimation method of acoustic signals based on the sinusoidal additive synthesis model. In the proposed method, frequencies both in signal and noise are estimated with several delay times by using an extended LP method. Performance of the proposed method is evaluated by computer simulation, and the lower variance of parameter estimation error is estimated by using the Cramer-Rao bound.
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