以下为句子列表：
英文: Abstract: This paper first discusses the optimum method of feature choice in the fuzzy recognition of tank under the condition of different noise source interference.Then,through quantitative analysis of the peak features of power spectrum and auto-correl
中文: 文摘:对不同声源干扰条件下坦克识别的特征优选方法进行了深入的研究和探讨，在此基础上，通过双谱谱峰特征的定量分析，对多源干扰时的坦克识别效果进行了分析对比，得出了有益的结论。
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英文: Power spectrum analysis and statistical moment function on a range of scales revealed scaling qualities of the date from stock market.
中文: 摘要通过对幂谱和统计矩函数的分析，得出股票市场时间序列的无标度性。
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英文: The measurement was made on a gas-solid fluidized bed in our laboratory.The pressure fluctuation signals were obtained and analyzed through power spectrum density.The relation of the particle size to pressure fluctuation and other parameters was studied b
中文: 在实验室条件下对气-固流化床的颗粒进行了测量，通过功率谱密度对所获得的压力波动进行了分析，并应用模糊集理论对颗粒尺寸与压力波动及其它影响参数的关系进行了研究。
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英文: Analysis of power spectrum for cicada's song,and it is a possible way for cicadas transfering their information.
中文: 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。
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