Range limitation for seismic footstep detection

James M. Sabatier; Alexander E. Ekimov

doi:10.1117/12.785235

16 April 2008 Range limitation for seismic footstep detection

Proceedings Volume 6963, Unattended Ground, Sea, and Air Sensor Technologies and Applications X; 69630V (2008) https://doi.org/10.1117/12.785235
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

Seismic methods for footstep detection exploit low frequency vibration waves, typically below 100 Hz. There are two limiting factors for detection of human footsteps at these frequencies: walking styles and the background noise floor. The walking style changes the dynamic footstep force on the ground and, therefore, limits the maximum distance at which walkers may be detected. For seismic frequencies, the background vibration noise floor is higher in urban areas than in quiet areas. This article presents and discusses test results of human footstep measurements as a function of distance using the seismic method in quiet and urban areas.

Citation Download Citation

James M. Sabatier and Alexander E. Ekimov "Range limitation for seismic footstep detection", Proc. SPIE 6963, Unattended Ground, Sea, and Air Sensor Technologies and Applications X, 69630V (16 April 2008); https://doi.org/10.1117/12.785235

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