Time delay estimation algorithm
Application backgroundIn the field of signal processing, cross-correlation (sometimes referred to as the "covariance") is used to represent the similarity between two signals of a measure, usually by with a known signal is used to find the characteristics of the unknown signal. It is a function of the time between the two signals, sometimes referred to as sliding dot product, in pattern recognition and password analysis field are all applications.
Key TechnologyThe arrival time difference of two signals is directly related to the signal, and the difference is estimated by comparing the similarity between two signals. Output delay.
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