Radar cross section statistical characteristic of aircraft in different movement state

The statistical characteristic of an aircrafts dynamic radar cross section(RCS) is affected by its movement state greatly. The same aircraft in different flying state presents different RCS statistical model. In this paper, the RCS obtained from the surveying radar is analyzed in both states of straight level stable flying and maneuvering flying. The analysis shows that the statistical characteristics of dynamic RCS of the two flight states are different. The statistical characteristic of dynamic RCS of the aircraft that fly straightly and level stably is approximately the same as static RCS. The fluctuant characteristic of dynamic RCS of the aircraft in the state of maneuvering flight is remarkable and stochastic. As the measurement time is long enough, the statistical characteristic of dynamic RCS of the aircraft in the state of maneuvering flight is more close to exponential distribution.