Phase synchronization based on a Dual-Tree Complex Wavelet Transform Maria Teodora Ferreira, Margarete Oliveira Domingues and Elbert E.N. Macau Eur. Phys. J. Special Topics, 225 13-14 (2016) 2679-2688 Published online: 22 November 2016 DOI: 10.1140/epjst/e2016-60010-6