We investigate a coupled logistic lattice system with complete unidirection
al coupling. A new type of spatial-temporal intermittency, we term it trave
lling chaos wave, appears when the coupling strength is in a suitable range
, and the annihilation of two chaos waves is observed. The chaotic motion i
n the spatial-temporal intermittency is 'logistic' in term of first-return
maps and first-order variability diagrams [1]. The driver of the lattices (
the first element) is investigated particularly. Its logistic parameter is
important for the chaos wave to propagate. (C) 2000 Elsevier Science B.V. A
ll rights reserved.