| One family of blind channel identification and equalization approaches has relied on the cyclostationary property of the communication signal induced at the receiver by fractional sampling. The disadvantages of them are that channels with uniformly-spaced zeros on a circle can not be identified and that they are extremely sensitive to channel order determination.; Recently, transmitter-induced cyclostationarity approaches have been proposed and shown to relax the constraint on channel zero locations as well as the requirement of exact order determination. This thesis explores further on this idea and develops several algorithms based on such a scheme. First, a cepstrum-based method is developed and shown through simulations to be more robust to channel order overestimation than existing techniques. In the second part, the general precoding scheme for cyclostationarity induction is studied. Various results are presented for this scheme. Based on these results, several algorithms are developed and simulated to illustrate their effectiveness. Comparison among various schemes is also presented. |
