Extensive evaluation experiments for the accumulated cross-power spectrum methods for time delay estimation

In numerous real time signal processing applications, time delay estimation (TDE) is still a hot topic. A recently proposed solution, based on Generalized Cross Correlation (GCC) method, is evaluated further in this paper. Experimental results show that among traditional variants of GCC methods the accumulated p-cross power spectrum phase proposed by us is the most accurate. Another important aspect is that the computing time of this method is comparable with those of other popular GCC methods.

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