TDOA estimation algorithm based on generalized cyclic correntropy

SUMMARY This paper mainly discusses the time-difference-of-arrival (TDOA) estimation problem of digital modulation signal under impulsive noise and cochannel interference environment. Since the conventional TDOA estimation algorithms based on the second-order cyclic statistics degenerated severely in impulsive noise and the TDOA estimation algorithms based on correntropy are out of work in cochannel interference, a novel robust signal-selective algorithm based on the generalized cyclic correntropy is proposed, which can suppress both impulsive noise and cochannel interference. Theoretical derivation and simulation results demonstrate the effectiveness and robustness of the proposed algorithm. key words: Alpha-stable distribution, impulsive noise, Cyclic correntropy,TDOA, Cochannel interference.