Aircraft Rotating Blades Radar Echo Model and JEM Feature Extraction
Air defense radar target recognition is a difficult area of target identification, target identification of aircraft has been an important area of national military research.On the basis of jet engine modulation (JEM) effect of air craft, caused of rotating components periodic motion, an universal mathematical model of air defense radar propellers modulation echo is established in this paper. According to the characteristic of propellers modulation echo, simulated and compared the effects of propellers structure parameters to rotary blades radar echo signals, and pointed out that diverse types of the plane echo have different characteristics of modulation cycle.Compared the estimation performances of several features analysis and extraction algorithm with the study of propairplane echo signal.The simulation results demonstrate that the feature is stable and effective, bispectrum estimation value is more accurate and less errors.Its feasible to using the feature to identify diverse types (or models) aircrafts.
air defense Radar JEM effect feature extraction target identification.
Huan LIAO Jianguo WANG Zongjie CAO
College of Electronic Engineering,University of Electronic Science and Technology of China Chengdu,Sichuan,P.R.China,611731
国际会议
厦门
英文
484-489
2011-07-08（万方平台首次上网日期，不代表论文的发表时间）