Vector spherical harmonics antenna description for IR-UWB ray tracing simulator

Burghelea, Roxana; Avrillon, Stéphane; Uguen, Bernard

doi:10.1109/iceaa.2009.5297432

Cited by 3 publications

(4 citation statements)

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“…VSH expansion of antenna radiation function simplifies data storage, process and analysis. Hence, the amount of data necessary to describe antennas is drastically reduced, the vector radiation functions are quickly reconstructed for different directions, and antenna radiation pattern is properly reconstructed [5]. PyRay is reinforced by a graph-based description of indoor channels based on four types of graphs: the structure graph, the visibility graph, the topological graph and the graph of rooms [6].…”

Section: Advanced Ray Tracing Solutionsmentioning

confidence: 99%

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Ray tracing-based radio propagation modeling for indoor localization purposes

Laaraiedh

Uguen

Stephan³

et al. 2012

2012 IEEE 17th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)

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International audienceThis paper regards the application of ray tracing (RT) tools for indoor localization techniques. The paper presents two possible applications of RT tools in that context. The first is the train/construction of fingerprints databases in order to complement or/and replace laborious measurement campaigns. The second application is the modeling of location-dependent parameters in order to feed localization techniques. These two applications are investigated and validated using three RT tools applied on a synthetic indoor environment. The obtained results showed that RT tools are reliable in both fingerprinting databases construction and LDPs modeling

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Section: Advanced Ray Tracing Solutionsmentioning

confidence: 99%

“…In order to simulate UWB antennas, PyRay uses vector spherical harmonics (VSH) to compactly describe the antenna radiation pattern within the entire frequency band [5]. VSH expansion of antenna radiation function simplifies data storage, process and analysis.…”

Section: Advanced Ray Tracing Solutionsmentioning

confidence: 99%

Ray tracing-based radio propagation modeling for indoor localization purposes

Laaraiedh

Uguen

Stephan³

et al. 2012

2012 IEEE 17th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)

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“…where the entries of the (1 + L) 2 , N t × N p matrix Y, are the spherical harmonic functions evaluated at the sampling grid points. The matrix, C is of dimension a 3, (1 + L) 2 with the c lm as columns arranged accordingly. Estimates of the coefficients c lm are obtained in a straight forward manner by the lest square method…”

Section: B Extraction Of Scalar Spherical Harmonics Coefficientsmentioning

confidence: 99%

“…In this work we approach the antenna data storage problem by means of expansion of the pattern in spherical harmonics (SH) [1], [2], [3]. In the SH basis, the full antenna data can be compressed to only a few coefficients.…”

Section: Introductionmentioning

confidence: 99%

Modelling of UWB antenna perturbed by human phantom in spherical harmonics space

Mhedhbi

Avrillon

Pedersen

et al. 2014

The 8th European Conference on Antennas and Propagation (EuCAP 2014)

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International audienceThe spherical harmonics expansion is an efficient tool to represent the antenna radiation pattern, especially in physical simulator, where the knowledge of full antenna data is fundamental and computationally intensive as well. Thus, the SH become imperative and represent compactly the antenna by reducing the data into a small number of coefficients. In Body Area Network (BAN) context, the goal is to go further than a compact storage of antenna data. In fact, we aim to study the effect of human phantom presence on the antenna in terms of spherical harmonics coefficients. The proposed paper will present a simple SH coefficients model allowing to predict the antenna behaviour disrupted by a human phantom, based on the knowledge of the SH coefficient of antenna in free space and antenna-phantom distance

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