Measurements and Analysis of the Doppler Signature of a Human Moving within the Forest in UHF-Band

Giovanni Manfredi (1) , Israël Hinostroza (1) , Michel Menelle (2) , Stéphane Saillant (2, 1) , Jean-Philippe Ovarlez (2, 1) , Laetitia Thirion-Lefevre (1)

1 SONDRA - Sondra, CentraleSupélec, Université Paris-Saclay
2 DEMR, ONERA, Université Paris Saclay [Palaiseau]

Measurements of the Doppler signature in UHF-band of a human moving in outdoor sites are presented in this paper. A radar campaign has been carried out, observing a subject walking and running outside, near and within a forest. A bistatic radar has been employed working in continuous wave (CW) at 1 GHz and 435 MHz. The spectrograms acquired in VV polarization are shown and discussed. This study aims to prove the feasibility of detecting people moving in forested areas at low frequencies. Besides, we highlight the impact of the frequencies and the different sites on the Doppler spectrum of the human motions. The Doppler frequency signature of the moving man has been well detected at 1 GHz and 435 MHz for each motor activity and scene. The working frequency 435 MHz has proved to be more efficient for the detection and classification of the physical activities.

Keywords: Doppler Radar; Micro-Doppler; Imagerie Radar

Domains: Engineering Sciences [physics]; Electromagnetism; Engineering Sciences [physics]; Signal and Image processing; Computer Science [cs]; Numerical Analysis [cs.NA]; Computer Science [cs]; Modeling and Simulation

Giovanni Manfredi, Israël Hinostroza, Michel Menelle, Stéphane Saillant, Jean-Philippe Ovarlez, et al.. Measurements and Analysis of the Doppler Signature of a Human Moving within the Forest in UHF-Band. Remote Sensing, 2021, 13 (3), pp.423. ⟨10.3390/rs13030423⟩. ⟨hal-03130174⟩