Extended Sonar Sequences - Information Theory, 1995. Proceedings., 1995 IEEE International Symposium on

Abstmct Sonar as well as other related sequences were introduced by Golomb and Taylor in [2 ] . Following a similar approachiwe introduce the concept of an extended sonar sequence. It is similar to that of a sonar sequence but blank columns are permitted. Several constructions of extended sonars are given. Our constructions are very close to ordinary sonar sequences. However they provide good improvements to the list of the best known constructions for sonar sequences up to 100 symbols given in [3].