Modelling and extraction technique for micro-doppler signature of aircraft rotor blades

14th International Conference on Science, Engineering and Technology

自然科学;工业技术

Praveen, N.^1 ; Valarmathi, J.^1

School of Electronics Engineering, VIT University, Vellore, Tamil Nadu

632014, India^1

关键词: Defence applications;    Developed model;    Extraction techniques;    Flying direction;    Micro-Doppler effect;    Point of interest;    Radar returns;    WignerVille distribution (WVD);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/263/5/052032/pdf
DOI  :  10.1088/1757-899X/263/5/052032

来源: IOP

【 摘 要 】

The process of detecting and distinguishing between different aircrafts has been a major point of interest in Defence applications. Micro-Doppler effect is one such phenomenon unique for aircrafts with different rotor dynamics and design. In this paper, we focus on deducing a mathematical model for micro-Doppler signature, of aircraft rotor blades assumed to be rotating in a plane perpendicular to the flying direction, induced on the incident radar signal. Also, we use the Wigner-Ville Distribution (WVD) to extract this signature from the radar return. This mathematical model is compared with the simulation results obtained from MATLAB, to validate the results and show the accurateness of the developed model.