Baseband cross-poarization interference cancellation based on scs algorithm

Cross Polarization Interference (XPI) is an inevitable problem in the Co-Channel Dual Polarization (CCDP) system. Therefore, a Cross-Polarization Interference Cancellation (XPIC) is necessary for the system. In this paper, we focus on the XPIC method at baseband, of which the main components are adaptive equalization based on Soft Constraint Satisfaction (SCS) algorithm. The attractive feature of the proposed XPIC is that the SCS improve the convergence speed and the Bit Error Ratio (BER) performances better compared to the traditional CMA-DDLMS algorithm, while the computational complexity keeps the same. Simulation and real data experiments validate the feasibility and effectiveness.