Multirate precoding using filterbanks induces cyclostationarity at the transmitter and guarantees blind identifiability of frequency selective communication channels with minimal decrease of information rate and without restrictions on zero locations. Finite impulse response (FIR) filterbank decoders are capable of equalizing blindly (and perfectly in the absence of noise) FIR channels without constraints on their zeros.
Bibliographical noteFunding Information:
Manuscript received November 13, 1996. This work was supported by the ONR under Grant N00014-93-1-0485. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. P. P. Vaidyanathan.