DPS132 is based on dual frequency GPS signals (L1 and L2 frequency bands), combined with satellite based augmentation systems (SBAS, such as WAAS, EGNOS) and wide area differential correction technology, which can improve positioning accuracy to sub meter level. The system has a built-in lever arm compensation function, which can accurately calculate the positions of multiple measurement points on the ship by integrating the ship's heading information, meeting the needs of multi-sensor fusion.