Relationship among cyclic time-difference-of-arrival estimation methods
Bi Feng · Dalian Ligong Daxue xuebao · 2012
The principles of several kinds of cyclic time-difference-of-arrival(TDOA) estimation methods are analyzed,and the methods are classified based on the principles.The relationship among these cyclic TDOA estimation methods is analyzed and demonstrated.The results show that the generalized cyclic cross correlation(GCCC) method is equivalent to the cyclic phase spectral method.The adaptive TDOA estimation with signal selectivity is the iterated realization of the spectral correlation ratio(SPECCORR) method.The correlated cyclic cross correlation(CCCC) and the spectral coherence alignment(SPECCOA) methods are special cases of the cyclic cross-ambiguity(CCA) function.