RF orthogonally coded carrier clutter rejection receiver having fictitious reference signals created following direction vector/delayed and added real signal with output filtered removing Doppler null parasitics

摘要

The clutter rejection system creates fictitious signals analogous to reference signals. The signals follow directional vectors which are orthogonal between them. The fictitious signals are delayed and a field produced. The symbols are added (9) to the fictitious signals to produce modified received signals (SPM1 to SPMn). The modified signals are filtered to remove the Doppler null parasitics.