Out-of-vehicle time-of-arrival-based localization in ultra-wide band

Abstract

The article presents out-of-vehicle channel measurement results in ultra-wide band spanning 3-11 GHz bandwidth using a vector network analyzer for localization applications. Experiments for different distances and different angles around the parked car are carried out. From the power delay profiles, the distance between the antennas is calculated exploiting the linear dependence of distance with line-of-sight delay peak. The coordinates of a transmitting antenna are found with the help of two receiving antennas following a two-dimensional time-of-arrival-based localization technique. A comparison of the calculated coordinates with the original exhibits an error of less than 6% which establishes the suitability of the proposed approach in locating other neighboring cars.

Introducing the Pi-CON Methodology to Overcome Usability Deficits during Remote Patient Monitoring

“…Therefore, rather than touching a device to interact with it, users can control the device with simple hand motions [76]. UWB radars operate between 3.1 GHz and 10.6 GHz [72], and FWCW at around 60 GHz [73]. Therefore, a higher frequency means less penetration through objects, so vital signs determination is often preferred with UWB due to its penetration properties and high bandwidth, which can also facilitate high data rates [74].…”

Ultrawideband (UWB)-based precise short-range localization for wireless power transfer to electric vehicles in parking environments

“…(2016) , a localization method based on one UWB anchor in a parking lot and two UWB tags on a vehicle was proposed. The method presented in Kukolev et al. (2016) can estimate the position while the vehicle is stationary.…”

“…Recently, many studies have been conducted to utilize an ultrawideband (UWB) distance sensor for vehicle localization technology (Stoll et al, 2017;Tiemann et al, 2016;Kukolev et al, 2016;Alarifi et al, 2016). In Stoll et al (2017), extended Kalman filter (EKF)-based vehicle localization using one UWB tag mounted on the vehicle and multiple UWB anchors placed in an outdoor parking space was proposed.…”

“…In addition, since the localization method uses only UWB distance measurements, it is very vulnerable to UWB measurement noise. In Kukolev et al (2016), a localization method based on one UWB anchor in a parking lot and two UWB tags on a vehicle was proposed. The method presented in Kukolev et al (2016) can estimate the position while the vehicle is stationary.…”

“…In Kukolev et al (2016), a localization method based on one UWB anchor in a parking lot and two UWB tags on a vehicle was proposed. The method presented in Kukolev et al (2016) can estimate the position while the vehicle is stationary. However, there is a limitation that an area where position estimation is not possible exists depending on the heading angle of the vehicle.…”