Track circuit with multiple transmitters: Single input multiple output track circuits

Through time track circuits have to be modified and upgraded. It is a necessity of modernization of rail transport. Increasing train speeds, and overcoming the human sensory capabilities of the driver, leads to the need to pass through the track circuit the information for train movement authority. With the advent of electric traction equipment appeared the interference with the track circuits and affecting his signals. In this paper it is proposed one new step in this way, a new track circuit with multiple transmitters that can improve the transmission for on-board information. This new track circuit uses a new technology “borrowed” from the mobile communications.