Analysis of power spectrum for cicada's song, and it is a possible way for cicadas transfering their information.
在时变功率谱分析中发现，蚱蝉功率谱的某些成分有显著的变化，可作为蝉类间信息传递的一种方式。
Conclusion: it is suggested that the analysis of power spectrum of HRV be a sensitive noninvasive method to evaluate the function of cardiac autonomic nerve.
结论：HRV频谱分析对评价心脏植物神经功能是一种敏感而无创的检测指标。
It uses a conventional constant false-alarm-rate(CFAR) detection procedure but the thresholding scheme is based on regression analysis of power spectrum values along range and Doppler cells.
该方法采用传统的恒虚警率（CFAR）检测方法，但其门限设置是基于沿距离和多普勒单元功率谱值的回归分析。
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