Time Delay Estimation Using the Adaptive Delay Element

摘要

Time delay estimation between two narrowband signals is a problem common to applications such as seismic and acoustical signal processing. Using a simple real-time adaptive delay element, we compare delay estimation accuracy for both stationary and nonstationary time delays as well as for varying input signal-to-noise ratios. The comparison includes a modification to the adaptive algorithm which yields a smoothed delay estimate. (ERA citation 09:001741)