Sufficient output conditions for identifiability in blind equalization
Dawei Huang, Fredrik Gustafsson · IEEE Transactions on Communications · 1999
The problem of input identifiability in blind deconvolution is considered where the input belongs to a known discrete alphabet. Input identifiability is an algorithm independent property, which does not necessarily imply channel identifiability. Sufficient conditions for input identifiability are derived in terms of algebraic relations on the observed output. It is shown how these new results relate to and unify other known sufficient conditions.