Time Difference of Arrival Estimation of Speech Source in a Noisy ...

EE049035 – Spring 2007
Cross Correlation Method
Based on the ideal model
Delay estimation is the lag time that
maximizes the CC function:
τˆ = arg max R ( τ)
CC z z
τ
1 2
R ( τ) = E { z ( τ) z ( t −
τ)
}
z1z2 1 2
10