Method for the Detection of Carrierin-Carrier Signals Based on Fourth-Order Cumulants

摘要

The method for the detection of Carrier-in-Carrier signals based on the calculation of fourthordercumulants is proposed. In accordance with the methodology based on the “Area under thecurve” (AUC) parameter, a threshold value for the decision rule is established. It was foundthat the proposed method provides the correct detection of the sum of QPSK signals for a widerange of signal-to-noise ratios. The obtained AUC value indicates the high efficiency of theproposed detection method. The advantage of the proposed detection method over the“radiuses” method is also shown.