Immersive virtual reality system-based electromagnetic spectrum situation observation method

The invention discloses an immersive virtual reality system-based electromagnetic spectrum situation observation method. The main objective of the invention is to solve the problem of incompleteness of spectrum situation map display information in a traditional observation method. The method of the invention has the advantages that: 1) an observation region three-dimensional model which contains a signal source is generated; 2) a plane in the model is selected as an observation plane, and distances from the signal source to each point on the observation plane are calculated; 3) the strength of signals which have been subjected to path loss and arrive at each point on the observation plane is calculated according to the distances of each point; 4) the strength of the signals is normalized, a three-dimensional electromagnetic situation spectrum map of an observation space is generated through using a color mapping method; and 5) a user wears a virtual reality head-mounted display device to watch a three-dimensi