Abstract
The technology for through-wall human detection with ultra-wideband (UWB) radar was discussed. Due to the large amount of UWB radar data, compressive sensing theory was introduced and compressed UWB radar data can be collected. The singular value decomposition algorithm was used to acquire the singular values of compressed radar data. The compressed UWB radar data were collected at two statuses of human being for gypsum wall. The experimental results showed that the singular values with a human target were increased compared with those without a target.
Highlights
Through-wall human detection is a new developing technology in recent years
The process of UWB radar signal has been presented which consists of the solution of the signal processing tasks such as raw radar data preprocessing, background subtraction, target detection, target trace estimation, target localization, and target tracking, and multiple target detection was investigated
The experimental results showed that the performance of antennas and of the radar electronics connected with powerful and clever algorithms were important for the successful application of human detection with UWB radar
Summary
Through-wall human detection is a new developing technology in recent years. It can penetrate non-metallic media (such as brick wall, ruins) to detect life signal in faroff areas but does not require any contact with the living body through electrodes or sensors [1-5]. Ultra-low-frequency electromagnetic energy, and ultra-wideband (UWB) radar technologies have been used for through-wall human detection currently. Due to its strong anti-interference ability, high-resolution performance, and good target recognition capabilities, the UWB radar has emerged as one of the most optimal choices for through-wall human detection.
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