Blind single-channel interference rejection using Godard´s criterion

It is well known that the performance of the Constant Modulus Algorithm (CMA) for interference cancellation is limited by a so-called notch compromise. This paper presents a new recursive structure based on Godard´s Criterion for blind interference suppression which overcomes this drawback. This interference-rejection structure is based on the linear prediction of the interference. The effectiveness of the new structure is studied in the presence of Co-Channel Interference (CCI) and additive Gaussian noise. It is shown that this structure can cancel predictable CCI.