Optimization of an Underground Localization System Based on Ultra-Wideband Radio and Inertial Navigation Through Determination and Evaluation of Influencing Factors

2022 ◽  
pp. 147-161
Author(s):  
Pascal Kriegsch ◽  
Fabian Uth ◽  
Amir Ehsan Kianfar ◽  
M. Junga ◽  
R. Baltes ◽  
...  
Keyword(s):  
Influencing Factors ◽  
Inertial Navigation ◽  
Ultra Wideband ◽  
Localization System ◽  
Wideband Radio

Design of a Bell-Shaped Ultra Wideband Antenna for Indoor Localization System

2015 ◽  
Vol 5 (6) ◽  
pp. 323 ◽  
Author(s):  
Nadia Ghariani ◽  
Mohamed Salah Karoui ◽  
Mondher Chaoui ◽  
Mongi Lahiani ◽  
Hamadi Ghariani
Keyword(s):  
Indoor Localization ◽  
Ultra Wideband ◽  
Localization System ◽  
Wideband Antenna

3D localization for subcentimeter-sized devices

2021 ◽  
Vol 64 (3) ◽  
pp. 117-125
Author(s):  
Rajalakshmi Nandakumar ◽  
Vikram Iyer ◽  
Shyamnath Gollakota
Keyword(s):  
Metropolitan Area ◽  
Ultra Wideband ◽  
Phase Information ◽  
Noise Floor ◽  
Localization System ◽  
Coin Cell ◽  
3D Localization ◽  
Button Cell ◽  
Iot Devices ◽  
5 Ghz

The vision of tracking small IoT devices runs into the reality of localization technologies---today it is difficult to continuously track objects through walls in homes and warehouses on a coin cell battery. Although Wi-Fi and ultra-wideband radios can provide tracking through walls, they do not last more than a month on small coin and button cell batteries because they consume tens of milliwatts of power. We present the first localization system that consumes microwatts of power at a mobile device and can be localized across multiple rooms in settings such as homes and hospitals. To this end, we introduce a multiband backscatter prototype that operates across 900 MHz, 2.4 GHz, and 5 GHz and can extract the backscatter phase information from signals that are below the noise floor. We build subcentimeter-sized prototypes that consume 93 μW and could last five to ten years on button cell batteries. We achieved ranges of up to 60 m away from the AP and accuracies of 2, 12, 50, and 145 cm at 1, 5, 30, and 60 m, respectively. To demonstrate the potential of our design, we deploy it in two real-world scenarios: five homes in a metropolitan area and the surgery wing of a hospital in patient pre-op and post-op rooms as well as storage facilities.

Achievable rates of transmitted-reference ultra-wideband radio with PPM

2006 ◽  
Vol 54 (9) ◽  
pp. 1536-1541 ◽  
Author(s):  
Xiliang Luo ◽  
G.B. Giannakis
Keyword(s):  
Ultra Wideband ◽  
Transmitted Reference ◽  
Wideband Radio

An interference-robust receiver for ultra-wideband radio in SiGe BiCMOS technology

2005 ◽  
Vol 40 (12) ◽  
pp. 2563-2572 ◽  
Author(s):  
R. Roovers ◽  
D.M.W. Leenaerts ◽  
J. Bergervoet ◽  
K.S. Harish ◽  
R.C.H. van de Beek ◽  
...  
Keyword(s):  
Ultra Wideband ◽  
Bicmos Technology ◽  
Sige Bicmos ◽  
Wideband Radio

Ultra-Wideband-Based Localization for Quadcopter Navigation

2016 ◽  
Vol 04 (01) ◽  
pp. 23-34 ◽  
Author(s):  
Kexin Guo ◽  
Zhirong Qiu ◽  
Cunxiao Miao ◽  
Abdul Hanif Zaini ◽  
Chun-Lin Chen ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Global Positioning System ◽  
Ultra Wideband ◽  
Line Of Sight ◽  
Positioning System ◽  
Localization Algorithm ◽  
Control Loop ◽  
Flight Tests ◽  
Localization System ◽  
Global Positioning

Micro unmanned aerial vehicles (UAVs) are promising to play more and more important roles in both civilian and military activities. Currently, the navigation of UAVs is critically dependent on the localization service provided by the Global Positioning System (GPS), which suffers from the multipath effect and blockage of line-of-sight, and fails to work in an indoor, forest or urban environment. In this paper, we establish a localization system for quadcopters based on ultra-wideband (UWB) range measurements. To achieve the localization, a UWB module is installed on the quadcopter to actively send ranging requests to some fixed UWB modules at known positions (anchors). Once a distance is obtained, it is calibrated first and then goes through outlier detection before being fed to a localization algorithm. The localization algorithm is initialized by trilateration and sustained by the extended Kalman filter (EKF). The position and velocity estimates produced by the algorithm will be further fed to the control loop to aid the navigation of the quadcopter. Various flight tests in different environments have been conducted to validate the performance of UWB ranging and localization algorithm.

scholarly journals Proposal and Investigation of Miniaturizing Unbalanced Dipole Antenna for Ultra Wideband Radio

2012 ◽  
Vol 15 (7) ◽  
pp. 526-533 ◽  
Author(s):  
Fukuro Koshiji ◽  
Shunsuke Itaya ◽  
Yusuke Akiyama ◽  
Kohji Koshiji
Keyword(s):  
Dipole Antenna ◽  
Ultra Wideband ◽  
Wideband Radio
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