Title :
Analysis of micro-Doppler signatures
Author :
Chen, V.C. ; Li, F. ; Ho, S.-S. ; Wechsler, H.
Author_Institution :
Radar Div., Naval Res. Lab., Washington, DC, USA
Abstract :
Mechanical vibration or rotation of a target or structures on the target may induce additional frequency modulations on the returned radar signal which generate sidebands about the target´s Doppler frequency, called the micro-Doppler effect. Micro-Doppler signatures enable some properties of the target to be determined. In the paper, the micro-Doppler effect in radar is introduced and the mathematics of micro-Doppler signatures is developed. Computer simulations are conducted and micro-Doppler features in the joint time-frequency domain are exploited
Keywords :
Doppler effect <micro-Doppler signatures>; radar signal processing <micro-Doppler signatures>; signal representation <micro-Doppler signatures>; time-frequency analysis <micro-Doppler signatures>; vibrations <micro-Doppler signatures>; Doppler frequency; computer simulations; frequency modulation; joint time-frequency domain; mechanical rotation; mechanical vibration; micro-Doppler effect; micro-Doppler signature analysis; returned radar signal; sidebands;
Journal_Title :
Radar, Sonar and Navigation, IEE Proceedings -
DOI :
10.1049/ip-rsn:20030743
