Adaptive noise cancellation using soft computing approach

235 p.Adaptive Noise Cancellation (ANC) can be regarded as a variation of optimal filtering and is frequently encountered in many applications such as video conferencing, wireless communications and multimedia signal processing. ANC revolves around using an auxiliary or reference input derived from one or more noise sources which may be in the fields where the signal is weak or undetectable. The fundamental working principle of noise canceler is to utilize the reference input to generate a replica of the additive noise which distorts the information signal, subtracts the replica from the received primary input so as to obtain distortion-free information signal. Therefore, the key issue of ANC is to design a feasible filter (canceler) according to the characteristics of the channel through which the noise source passes.DOCTOR OF PHILOSOPHY (EEE