PDMA-2: the feedback Kalman filter and simultaneous multiple access of a single channel
D.J. Sobiski, James S. Thorp · IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications · 1998
A Kalman filter structure is developed that permits two or more Kalman filters to be connected to each other in a feedback configuration. The resulting network can be used for communication with a class of signals previously inaccessible. This network forms a basis for simultaneous multiple access of a single channel.