GENERATION,MODULATION AND RECEPTION OF ORTHOGONALLY POLARIZED SIGNALS

摘要

We consider the radiating electromagnetic field of a dipole antenna.By allowing the dipole to rotate about its midpoint,one can construct an entire set of signal polarizations wherein distinct members of the set are mutually orthogonal.We show how these signals can be modulated and demodulated to convey information.We then generalize these ideas and define both balanced,as well as unbalanced Quadrapole modulation.We describe methods of receiver synchronization to such signals,as well as their potential application to multiple access and anti-jam communications.