Title :
Micro-doppler feature extraction for ballistic missile warhead
Author :
Hui-xia Sun ; Zheng Liu
Author_Institution :
Nat. Lab. of Radar Signal Process., Xidian Univ., Xi´an
Abstract :
To elucidate the spinning signatures of ballistic missile warhead, the model of spinning motion for ballistic missile warhead is established and the mathematical formulas for micro-Doppler signatures caused by spinning motion is derived. Then the time-varying micro-Doppler signatures are analysed with high-resolution time-frequency transform, and the micro-Doppler frequency is calculated based on time-frequency distribution. Finally the computer simulation confirms theoretical analysis, providing theoretical foundation for warheads recognition by micro-Doppler signatures.
Keywords :
Doppler radar; ballistics; feature extraction; military radar; missiles; radar imaging; time-frequency analysis; transforms; ballistic missile warhead; high-resolution time-frequency transform; micro-Doppler feature extraction; spinning signatures; time-frequency distribution; time-varying micro-Doppler signatures; Doppler radar; Feature extraction; Frequency modulation; Mathematical model; Missiles; Radar scattering; Signal generators; Spinning; Target recognition; Time frequency analysis;
Conference_Titel :
Information and Automation, 2008. ICIA 2008. International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-2183-1
Electronic_ISBN :
978-1-4244-2184-8
DOI :
10.1109/ICINFA.2008.4608208
