DVB-S2 DVB-RCS2 . TECHNOLOGY FOR REMOVING INTERFERENCE AND NON-LINEARITU FOR SIGNLE SATELLITE CHANNEL TRANSMISSION BASED ON DVB-S2 AND DVB-RCS2

摘要

According to an exemplary embodiment of the present invention, an interference cancellation method performed by an interference cancellation apparatus, comprising: generating a DVB-S2 reference communication signal for DVB-S2 and DVB-RCS2 communication signals passing through the same satellite channel; A non-linear training step of performing non-linear training to synchronize DVB-S2 communication signals passing through the same satellite channel; Compensate for nonlinearity using the synchronized DVB-S2 communication signal, and compensate for nonlinearity by removing the nonlinearity effect generated by the DVB-S2 and DVB-RCS2 communication signals passing through the same satellite channel using the calculated nonlinearity coefficient. Nonlinear compensation step of performing; A DVB-S2 channel estimation step of performing DVB-S2 channel estimation to synchronize the DVB-S2 and DVB-RCS2 communication signals from which the nonlinear effect is removed; And outputting a DVB-RCS2 communication signal from which the DVB-S2 communication signal causing interference effect is removed from the DVB-S2 and DVB-RCS2 communication signals estimated by using the DVB-S2 reference communication signal. It may be a method for removing interference.