| In recent years,with the continuous advancement of digital and intelligent technologies,ships are also developing in the direction of digitalization,intelligence and integration.The advanced ship navigation and control system research and development stage requires a large number of tests.The use of real navigation equipment for actual ship testing is costly,risky,and long.In order to reduce test costs and risks,and improve test efficiency,this paper designs and implements a signal simulation system for marine navigation equipment.The main research contents are as follows:(1)Based on the system requirements,the overall system plan was designed.(2)According to different sailing scenarios,the curve fitting track simulation and the six-dimensional motion model track simulation method based on the plane motion equation are proposed,and MATLAB simulation is used to generate a variety of tracks to verify the feasibility of the track model.(3)Through the specific format and error analysis of the navigation signal.Realized the signal simulation of GPS,compass,log,AIS and other marine navigation equipment,and establish a radar scanning model to scan and detect targets around the ship.(4)MATLAB is used to realize the signal simulation system of Marine navigation equipment.The test results with the electronic chart information display system show that the system can realize static parameter setting,serial port debugging and ship movement mode selection,and can generate a variety of ship navigation equipment signals according to the planned track.Through the above research work,the marine navigation equipment signal simulation system can realize the required functions.It can output a variety of marine navigation equipment signals under different navigation scenarios,so as to achieve efficient and comprehensive testing of the ship’s navigation and control systems. |
