INS and GNSS fusion enhancement based on a weighted reliabilities approach

Patarot, Alexandre; Boukallel, Mehdi; Lamy-Perbal, Sylvie; Vervisch-Picois, Alexandre; Samama, Nel

doi:10.1109/ipin.2012.6418908

Cited by 4 publications

References 12 publications

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Indoor location identification technologies for real-time IoT-based applications: An inclusive survey

Oguntala

Abd‐Alhameed

Jones

et al. 2018

Computer Science Review

113

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The advent of the Internet of Things has witnessed tremendous success in the application of wireless sensor networks and ubiquitous computing for diverse smart-based applications. The developed systems operate under different technologies using different methods to achieve their targeted goals. In this treatise, we carried out an inclusive survey on key indoor technologies and techniques, with to view to explore their various benefits, limitations, and areas for improvement. The mathematical formulation for simple localization problems is also presented. In addition, an empirical evaluation of the performance of these indoor technologies is carried out using a common generic metric of scalability, accuracy, complexity, robustness, energy-efficiency, cost and reliability. An empirical evaluation of performance of different RF-based technologies establishes the viability of Wi-Fi, RFID, UWB, Wi-Fi, Bluetooth, ZigBee, and Light over other indoor technologies for reliable IoT-based applications. Furthermore, the survey advocates hybridization of technologies as an effective approach to achieve reliable IoT-based indoor systems. The findings of the survey could be useful in the selection of appropriate indoor technologies for the development of reliable real-time indoor applications. The study could also be used as a reliable source for literature referencing on the subject of indoor location identification.

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Indoor location identification technologies for real-time IoT-based applications: An inclusive survey

Oguntala

Abd‐Alhameed

Jones

et al. 2018

Computer Science Review

113

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Localization by analysis of the geometrical deformation of a network of communicating entities

Samama

Vervisch-Picois

2014

2014 International Conference on Indoor Positioning and Indoor Navigation (IPIN)

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International audienceWe propose an approach for future localization systems which is quite different from the Global Navigation Satellite Systems standard. The idea is to think about the localization process in a relative way, i.e. to consider the entities with regard to each other. We aim at designing a relative system in order to simplify the practical aspects (low power because low range, no complex synchronization processes, etc.), but also in order to considerably improve the precision (by using local phase measurements of carriers typically). The main idea is based on the fact that it is often sufficient to have a "local understanding" of the localization and that the knowledge of the "geometry" of the distribution of a set of entities allows us to perform the mission. Furthermore, we know that it is possible to achieve accurate relative measurements between two entities, by using measurements of phases of a carrier for example. We shall thoroughly describe the problem of what could be a precise positioning system not requiring any specific infrastructure, and affordable in terms of technologies as well as low energy consumption. This is made possible by use of mature technologies and by the fact that the proposed radio communication links are carried out at short distances, only between two entities. We suggest using only Doppler-like measurements, similar to a radar approach, but through a single way transmission. It is then possible to know the value of the projection of the difference of the speed vectors of the two entities on the axis which separates them. By using only these measurements, we define a new type of positioning and we also analyze the possibility to go back to an absolute positioning, sometimes made possible by the availability of absolute data, as distances or geographical coordinates of a few terminals. In a second approach, we deal with geometry (the calculation of angles) while introducing measurements relative to a reference terminal. Having studied the feasibility to calculate the various angles, from only Doppler-like measurements of four terminals relatively with the others, we show it is possible to obtain the relative positions of the entities. The problem is however not trivial because numerous symmetries exist. Simulations allow us to provide first validations of these concepts. A third approach, still based on relative measurements between two terminals, consists in using distance measurements. We could envisage for example time of flight measurements between two Ultra Wide Band (UWB) knots. In such a case, the calculations are much easie

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A HMM map-matching approach enhancing indoor positioning performances of an inertial measurement system

Lamy-Perbal¹,

Guénard²,

Boukallel³

et al. 2015

2015 International Conference on Indoor Positioning and Indoor Navigation (IPIN)

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INS and GNSS fusion enhancement based on a weighted reliabilities approach

Cited by 4 publications

References 12 publications

Indoor location identification technologies for real-time IoT-based applications: An inclusive survey

Indoor location identification technologies for real-time IoT-based applications: An inclusive survey

Localization by analysis of the geometrical deformation of a network of communicating entities

A HMM map-matching approach enhancing indoor positioning performances of an inertial measurement system

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