Direct wave reconstruction of non-cooperative bistatic pulse radar using modified CMA+MMA algorithm

The direct-path reference signal is affected by noise and multi-path interference signals. In order to restore the direct-path reference signal of non-cooperative bistatic pulse radar, the techniques of blind equalization are researched. Because the modulus of the direct-path signal is constant when the direct wave pulse is sustained, and is zero when the direct wave pulse is broken, the CMA and MMA algorithm in blind equalization algorithms are chosen as the proper algorithm. On the basis of the two algorithms, a modified CMA+MMA algorithm is proposed, and the validity of the algorithm is proved by using the computer simulation.