Time Delay Estimation Based on Cross-correlation and Multiple Signal Classification
SI Xi-cai · Journal of Projectiles.Rockets.Missiles and Guidance · 2009
For avoiding fuzzy in the direction-finding technology of phase interferometer,and for improving measuring precision of wideband signal delay estimation,the combination of cross-correlation function and multiple signal classification(MUSIC) algorithm was introduced to the field of time delay estimation(TDE) in frequency domain.A MUSIC based on cross-correlation function high precision TDE algorithm was researched.The irrelevant noise can be completely eliminated by the cross-correlation method in theory,and computation is reduced,the detection probability increases.The simulation results show that the algorithm is featured with high precision and robustness,fitting for TDE in electronic countermeasure.