A method for guiding a towed implement being towed by a towing vehicle over a predetermined course, comprising: measuring a distance (D) between a first point on the towing vehicle and a second point on the towed implement using a pair of sensors ; identifying relative rotation rates for the towing vehicle and the towed implement using additional sensors; combining the distance measured using the pair of sensors and the relative rotation rates identified using the additional sensors for determining an articulation angle (Γ) between the towed implement and the towing vehicle from a result of the combining; and calculating the position of the towed implement relative to the towing vehicle from the articulation angle (Γ) between the towed implement and the towing vehicle , determining absolute positions of the towing vehicle and the implement using a single Global Navigation Satellite System (GNSS) receiver associated with the towing vehicle , including: determining the absolute position of the towing vehicle using the GNSS receiver; and deriving the absolute position of the towed implement based on the calculated relative position of the towed implement and by referencing the absolute position of the towing vehicle ; wherein the method further comprises inputting the absolute positions into a steering control unit associated with the towing vehicle , wherein the steering control unit guides the implement over the predetermined course based on the absolute positions. measuring a distance (D) between a first point on the towing vehicle and a second point on the towed implement using a pair of sensors ; identifying relative rotation rates for the towing vehicle and the towed implement using additional sensors; combining the distance measured using the pair of sensors and the relative rotation rates identified using the additional sensors for determining an articulation angle (Γ) between the towed implement and the towing vehicle from a result of the combining; and calculating the position of the towed implement relative to the towing vehicle from the articulation angle (Γ) between the towed implement and the towing vehicle , determining absolute positions of the towing vehicle and the implement using a single Global Navigation Satellite System (GNSS) receiver associated with the towing vehicle , including: determining the absolute position of the towing vehicle using the GNSS receiver; and deriving the absolute position of the towed implement based on the calculated relative position of the towed implement and by referencing the absolute position of the towing vehicle ; wherein the method further comprises inputting the absolute positions into a steering control unit associated with the towing vehicle , wherein the steering control unit guides the implement over the predetermined course based on the absolute positions. determining the absolute position of the towing vehicle using the GNSS receiver; and deriving the absolute position of the towed implement based on the calculated relative position of the towed implement and by referencing the absolute position of the towing vehicle ; wherein the method further comprises inputting the absolute positions into a steering control unit associated with the towing vehicle , wherein the steering control unit guides the implement over the predetermined course based on the absolute positions. <EOS>