Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Vittorio Rampa"'
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 4, Pp 958-973 (2024)
Electromagnetic (EM) body models predict the impact of human presence and motions on the Radio-Frequency (RF) field originated from wireless devices nearby. Despite their accuracy, EM models are time-consuming methods which prevent their adoption in
Externí odkaz:
https://doaj.org/article/cedef29a72d241e0a264915d5c29fbae
Publikováno v:
Sensors, Vol 23, Iss 6, p 3195 (2023)
The explosion of artificial intelligence methods has paved the way for more sophisticated smart mobility solutions. In this work, we present a multi-camera video content analysis (VCA) system that exploits a single-shot multibox detector (SSD) networ
Externí odkaz:
https://doaj.org/article/e3926fa699dc4ad2b0a4131db05efe1f
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2018, Iss 1, Pp 1-19 (2018)
Abstract In device-free radio frequency (RF) body occupancy inference systems, RF signals encode information (e.g., body location, posture, activity) about moving targets (not instrumented) that alter the radio propagation in the surroundings of the
Externí odkaz:
https://doaj.org/article/f03d543dfcbf409eb978812ed83aef09
Publikováno v:
IEEE Access, Vol 6, Pp 51484-51499 (2018)
In this paper, we show the possibility of using the smartphone built-in cellular radio modem to track sudden changes in the environment around it, thus turning the cellphone into a radio-frequency (RF) virtual sensor. In particular, we demonstrate ho
Externí odkaz:
https://doaj.org/article/40e45feb67f04438966b960f955e7517
Publikováno v:
Sensors, Vol 21, Iss 5, p 1728 (2021)
In this paper, we discuss the problem of device-free localization and tracking, considering multiple bodies moving inside an area monitored by a wireless network. The presence and motion of non-instrumented subjects leave a specific footprint on the
Externí odkaz:
https://doaj.org/article/5d2162a2f8af4a3b8cee0de1801b7b9b
Publikováno v:
Sensors, Vol 19, Iss 16, p 3450 (2019)
Subject counting systems are extensively used in ambient intelligence applications, such as smart home, smart building and smart retail scenarios. In this paper, we investigate the problem of transforming an unmodified WiFi radio infrastructure into
Externí odkaz:
https://doaj.org/article/c0eb7e67c2d94bc785efaba1755d80d6
Autor:
Vittorio Rampa
Publikováno v:
Journal of Communications Software and Systems, Vol 1, Iss 1, Pp 42-50 (2005)
In hybrid CDMA systems, multiuser detection (MUD) algorithms are adopted at the base station to reduce both multiple access and inter-symbol interference by exploitingspace-time (ST) signal processing techniques. Linear ST-MUD algorithms solve a line
Externí odkaz:
https://doaj.org/article/be355f41b84441ba8131cf26f202bca5
Autor:
Santoboni, Marco, Bersan, Riccardo, Savazzi, Stefano, Zecchin, Alberto, Piazza, Vittorio Rampa Daniele
The paper targets the problem of human motion detection using Wireless Local Area Network devices (WiFi) equipped with pattern reconfigurable antennas. Motion sensing is obtained by monitoring the body-induced alterations of the ambient WiFi signals
Externí odkaz:
http://arxiv.org/abs/2205.00973
Publikováno v:
IEEE Sensors Journal. 23:3801-3814
Publikováno v:
2023 17th European Conference on Antennas and Propagation (EuCAP).