A refined modeling and analysis method for single and multi rotor targets

For helicopter targets, rotor blades are usually simplified as multiple scattering points on a straight line, but in reality, rotor blades have a width and there may be differences in RCS when approaching and moving away from the blades. Therefore, it is necessary to explore more refined modeling methods for rotor blades to approach real targets more closely. This article proposes a more refined modeling method to simulate the time-frequency changes of helicopter rotor blades approaching and moving away from radar in real life, which can improve the feature extraction ability of helicopter and unmanned aerial vehicle targets. Comparison of measured data is conducted to improve the application performance of radar systems in the field of communication.