名词
中文翻译：信号自相关
同义词：
['autocorrelation', 'autocorrelation function']
例句：
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1. The signal autocorrelation is used to measure the strength of a signal's correlation with itself.
信号自相关用于测量信号与其自身相关性的强度。
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2. In signal processing, autocorrelation is used to detect and analyze patterns in data.
在信号处理中，自相关用于检测和分析数据中的模式。
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3. The autocorrelation function is a mathematical tool that helps us understand how a signal changes over time.
自相关函数是一种数学工具，帮助我们理解信号随时间如何变化。