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提出了基于经典谱估计的加权法以提高频率分辨精度。在序列长度一定时，与传统周期图法或ＢＴ法相比，本方法能显著地提高频率的分辨精度，且稳定性好，可靠性高。
A weighting method based on classical spectral estimation is proposed to improve the frequency resolution accuracy. When the length of the sequence is constant, compared with the traditional periodic graph method or the BT method, the method can remarkably improve the resolution accuracy of the frequency and has good stability and high reliability.