Cabin internal 5G broadband signal coverage performance evaluation method

The invention discloses a cabin internal 5G broadband signal coverage performance evaluation method, which comprises the following steps that: 1, a user provides a cabin internal structure design drawing and object material scene information, and appoints a 5G signal access point position, a communication bandwidth, a communication frequency and transmitting power; step 2, according to scene information provided by a user, performing three-dimensional reconstruction on all regular and irregular scatterers in a scene by using different triangular surface elements, and defining material information; step 3, modeling a 5G broadband channel in the cabin; step 4, calculating broadband channel parameters in the cabin based on the cabin scene reconstructed in the step 1 and the step 2; and 5, evaluating the 5G broadband signal coverage performance in the cabin. The 5G signal coverage performance evaluation method in the cabin is given by combining the cabin environment characteristics and the cabin broadband channel