Patent ID: 10149298

Abstract:
At a ground-based transmitting system, a first processor receives and performs an N-to-N wavefront-multiplexing (WFM) transform on N signals and outputs N WFM signals, N>1. The N WFM signals are orthogonal to one another and each of which is a unique linear combination of the N signals. The N-to-N WFM transform has a unique inverse. A transmit back-end transmits the N WFM signals over a transmission medium via propagation channels. At a user terminal, a receive front-end receives the N transmitted WFM signals and generates N received WFM signals. An equalizer generates N equalized signals from the N received WFM signals. A second processor performs the unique inverse of the N-to-N WFM transform on the N equalized signals and outputs N wavefront demultiplexed signals, each of which is a unique linear combination of the N equalized signals and is a recovered version of a respective one of the N signals.