Instantaneous frequency estimation based on the linear canonical transform

Instantaneous frequency estimation based on the linear canonical transform
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基于线性正则变换的瞬时频率估计

DOI:
10.1016/j.jfranklin.2012.09.014
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发表时间:
2012-12
期刊:
Journal of the Frankin Institute
影响因子:
--
通讯作者:
Ma Xiu-Ling
Ma Xiu-Ling
中科院分区:
其他
文献类型:
--
作者:
Xu Xiao-Na;Li Bing-Zhao;Ma Xiu-Ling

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研究了线性正则变换功率谱与信号的相位差运算之间的关系。基于这种关系,提出了一种求解瞬时频率估计问题的新方法。通过带噪声信号和不带噪声信号两个实例说明了该方法的优越性。该方法不需要投影和寻峰,具有非迭代性。
The relationship between the linear canonical transform power spectrum and signal's phase differentiation operation has been investigated. Based on this relationship, a novel method for solving the instantaneous frequency estimation problem is proposed. The advantage of this method is demonstrated by two examples, namely, signals with and without noise. The proposed method is non-iterative, and it does not need projection or peak-searching.
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