Ultra-short baseline underwater acoustic positioning system for simulation based on digitized models and debugging method

The present invention discloses an ultra-short baseline underwater acoustic positioning system for simulation based on digitized models and a debugging method. The positioning system is used for positioning a ship and is characterized by including a digitized GPS model providing GPS positioning data for the ship; a digitized gyrocompass model providing gyrocompass data of the ship to correct a positioning result of the ship; and a digitized MRU model providing pitch and roll parameters of the ship to correct the positioning result of the ship. According to the present invention, environmental parameter data may be respectively provided for a positioning process based on the digitized GPS model, gyrocompass model and MRU model, thereby facilitating simulation of the positioning process and analysis under various environmental conditions and achieving high flexibility; and actual sensors are avoided from being used, and thus, the hardware input cost is reduced.