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频谱泄漏
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频谱泄漏
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快速傅里叶变换
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spectral leakage
频谱泄漏
信号频谱中各谱线之间相互影响,使测量结果偏离实际值,同时在谱线两侧其他频率点上出现一些幅值较小的假谱的现象。
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chemical evolution of environment
chemical evolution of galaxies
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