Method for simulating and optimizing echo signal intensity of moving surface ship

The invention discloses a method for simulating and optimizing the echo signal intensity of a moving surface ship, which comprises the following steps of: establishing a three-dimensional ship body model below the water surface according to a ship model line graph, subdividing a triangular surface grid, solving a moving posture of the three-dimensional ship body model and a two-dimensional rough sea surface complex reflection coefficient in combination with different sea condition parameters, and according to the established four-path echo model of the water surface ship and four-path echo signals of the moving water surface ship, superposing the echo signal intensity of each path, and simulating the echo signal intensity of the moving water surface ship. The method disclosed by the invention has a remarkable advantage in calculation speed, and the average error between the theoretical simulation result and the actual measurement result of the echo signal intensity is less than 2dB, so that the echo signal in