The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A methodology to construct radio source distribution map using antenna arrays distributed in indoor environments is proposed. The map is constructed based on the image method of field prediction and shows locations of the primary (original) and secondary (mirrored) sources with their intensity. The map provides in-depth description of propagation mechanisms including specular reflection and diffused...
In this paper the spatial variation of dense multipath in radio channels is analysed. It is shown that the angular distribution of dense multipath is only weakly coupled between both link ends. The influence of partial shadowing of dense multipath on one link-end on its angular distribution on the other link-end is analysed. Furthermore, the influence of scenario transitions, from non line-of-sight...
In this paper we present a Direction-of-Arrival (DoA) based system which is used for indoor positioning applications. The proposed system has been designed for locating transmitter tags/mobile phones in open indoor locations, such as conference centers, expo areas, and warehouses. A description of both the system architecture and the DoA-based indoor-positioning algorithm are given. In order to demonstrate...
Antenna radiation patterns can be compactly represented using an expansion in spherical harmonic functions. In contrast to widely used expansions in vector spherical wave functions, we use an expansion in scalar spherical harmonics with vector coefficients to represent the vector-valued transverse electric far field (including arbitrary polarization state). The vector coefficients can be obtained...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.