File Name: ultra-wideband positioning systems theoretical limits ranging algorithms and protocols .zip
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- Improving UWB-Based Localization in IoT Scenarios with Statistical Models of Distance Error
- Analysis of the Scalability of UWB Indoor Localization Solutions for High User Densities.
This paper presents LocSpeck, a collaborative and distributed indoor positioning system for dynamic nodes connected using an ad-hoc network, based on inter-node relative range measurements and Wi-Fi fingerprinting. The proposed system operates using peer-to-peer range measurements and does not need ultra-wideband UWB fixed anchor, nor it needs a predefined network topology. The nodes could be asymmetric in terms of the available sensors onboard, the computational resources, and the power capacity. This asymmetry adversely affects the positioning performance of the weaker nodes. Collaboration between different nodes is achieved through a distributed estimator without the need of a single centralized computing element.
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PL EN. Widoczny [Schowaj] Abstrakt. Adres strony. International Journal of Electronics and Telecommunications. Kolakowski, J. Systems supporting traffic safety require precise information on a vehicle position.
Position estimation of wireless devices has many applications in short-range networks. Ultra-wideband UWB signals provide accurate positioning capabilities that can be harnessed in wireless systems to realize these applications. This title providesMorePosition estimation of wireless devices has many applications in short-range networks. This title provides detailed coverage of UWB positioning systems, offering comprehensive treatment of signal and receiver design for ranging, range estimation techniques, theoretical performance bounds, ranging algorithms and protocols. Beginning with a discussion of the potential applications of wireless positioning, and investigating UWB signals for such applications, later chapters establish a signal processing framework for analyzing UWB positioning and ranging systems.
Improving UWB-Based Localization in IoT Scenarios with Statistical Models of Distance Error
Ultra-Wideband UWB is an emerging radio technology that has the potential to become the new enabler for the next generation of wireless networks. The strength of the UWB radio technique lies in its use of extremely wide transmission bandwidths which results in desirable capabilities including accurate location and position ranging, lack of significant fading, high multiple access capability, and possible material penetration. The technology has several distinct characteristics that set it apart from other tethered or untethered technologies. Thus, extremely challenging theoretical and practical problems are raised, regarding the network performance and management. Our main goal is to understand the fundamental performance limits of UWB networks and to utilize the unique UWB properties in order to design algorithms that enable us to approach these performance limits.
Position estimation of wireless devices has many applications in short-range networks. Ultra-wideband UWB signals provide accurate positioning capabilities that can be harnessed in wireless systems to realise these applications. This text provides detailed coverage of UWB positioning systems, offering comprehensive treatment of signal and receiver design for ranging, range estimation techniques, theoretical performance bounds, ranging algorithms and protocols. Beginning with a discussion of the potential applications of wireless positioning, and investigating UWB signals for such applications, later chapters establish a signal processing framework for analysing UWB positioning and ranging systems. The recent IEEE Each chapter contains examples, problems and Matlab scripts to help readers grasp key concepts. This is an ideal text for graduate students and researchers in electrical and computer engineering, and practitioners in the communications industry, particularly those in wireless communications.
Analysis of the Scalability of UWB Indoor Localization Solutions for High User Densities.
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In this scenario, it becomes urgent to develop solutions in order to both encourage people to cycle and make cycling safer at the same time. Today several technologies are available and could be exploited to detect dangerous situations for cyclists. In order to choose the proper one, we propose a multidisciplinary approach based on a deep analysis of the most dangerous scenarios and situations. For these reasons, the technological requirements for such application must account for several and heterogeneous aspects in order to make it effective, reliable, and user-friendly and with low-cost. To this end, in this paper we first provide an analysis of accidents statistics involving cyclists.
Interest in the Internet of Things IoT is rapidly increasing, as the number of connected devices is exponentially growing. One of the application scenarios envisaged for IoT technologies involves indoor localization and context awareness.
ГЛАВА 62 Коммандер и Сьюзан стояли у закрытого люка и обсуждали, что делать. - Итак, внизу у нас погибший Чатрукьян, - констатировал Стратмор. - Если мы вызовем помощь, шифровалка превратится в цирк. - Так что же вы предлагаете? - спросила Сьюзан. Она хотела только одного - поскорее уйти. Стратмор на минуту задумался.
Сьюзан не могла не восхититься умом Танкадо. Не открыв своего алгоритма, он доказал АНБ, что тот не поддается дешифровке.
О Боже! - Он внезапно понял, что искалеченный гений все это время давал им ответ. - Три - это простое число! - сказала Соши. - Три - это простое число. Фонтейн пребывал в изумлении.
Вскоре путь ей преградила кабина голосового сканирования, табличка на которой гласила: АГЕНТСТВО НАЦИОНАЛЬНОЙ БЕЗОПАСНОСТИ (АНБ) ОТДЕЛЕНИЕ КРИПТОГРАФИИ ТОЛЬКО ДЛЯ СОТРУДНИКОВ С ДОПУСКОМ Вооруженный охранник поднял голову: - Добрый день, мисс Флетчер. - Привет, Джон. - Не ожидал, что вы придете .