Loran-C Synchronous Interference Suppression Using Improved Adaptive Algorithms

Due to the large number of transmissions close to the Loran-C band, synchronous interference has become a serious problem. An improved adaptive algorithm for suppressing the synchronous interference of Loran-C components is presented. The present adaptive algorithms have the disadvantages of tremendous operation and long-time orientation, thus, the paper puts forward an improved algorithm (BMMax-NLMS) to reduce the computation. Based on the Loran-C signal model, this algorithm is used to filter the interfering carry. The simulation results show that this algorithm can effectively reduce the computation on the premise of suppressing the synchronous carry, which has achieved the anticipative purpose.