Radar range profile analysis with natural frame time-frequency representation

Victor C. Chen

doi:10.1117/12.271736

3 April 1997 Radar range profile analysis with natural frame time-frequency representation

Victor C. Chen

Proceedings Volume 3078, Wavelet Applications IV; (1997) https://doi.org/10.1117/12.271736
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

Range profiles generated by a high range resolution radar have been used for non-cooperative target identification, especially in cases when radar range-Doppler image cannot be generated due to various reasons. Since a range profile is inherently a transient phenomenon, underlying features may not be identified in the time domain or frequency domain alone.However, the joint time-frequency analysis may provide a localized time-frequency information for identifying significant features of targets. A basis set, which is natural to the signal and called the natural frame, can be derived from the signal's energy distribution in the joint time-frequency domain. In this paper, the natural frame decomposition is used for best representing radar range profiles, a time-frequency ridge detector is applied for finding the natural frame set, which can be used as the target features for classification.

Citation Download Citation

Victor C. Chen "Radar range profile analysis with natural frame time-frequency representation", Proc. SPIE 3078, Wavelet Applications IV, (3 April 1997); https://doi.org/10.1117/12.271736

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