Decision feedback for autocorrelation matching anti-jamming filter

A decision feedback structure is presented to completely eliminate the jamming in communication system. This technique embeds specific autocorrelation information into the sending signal; in the receiver, an anti-jamming filter is constructed to block the jamming by matching the statistics of the filter output with reference autocorrelation function and the decision feedback. This data length required by this algorithm is much smaller than that of original autocorrelation matching algorithm. Simulation shows the reduction in residual jamming power and an improvement of SIR compare to original autocorrelation matching algorithm with same data length.