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.
Round trip time of arrival (TOA) measurements (RTMs) are widely used in asynchronous wireless localization networks. Recent researches show that if the scheduling policy is properly designed, some “silent” nodes can enhance the localization accuracy by purely “listening” to the RTM signals, which are so called eavesdroppers. Eavesdroppers are attractive in complexity and energy limited scenarios,...
In this letter, we consider the scheduling and resource allocation problems in asynchronous ultra wideband cooperative localization networks, where the round trip measurements are applied for range estimation. A general non-data-aided cooperative scheduling strategy is first presented, where the reply signals can be identified by different frequency bands. Therefore, extra information, such as node...
Non line of sight (NLOS) error identification and mitigation is of great importance in ultra wideband (UWB) ranging and localization. Based on the features extracted from the received waveform in practical experiments, a machine learning method is proposed for UWB NLOS identification in this paper. Corresponding NLOS error mitigation method is also given based on the identification results. Compared...
Impulse-Radio Ultra Wideband (IR-UWB) is a promising technology for indoor localization due to its robustness against multipath interference. In this paper, to deal with the synchronization requirement among anchors in traditional time-difference-of-arrival (TDOA) localization, which is difficult to achieve, an asynchronous time-difference-of-arrival (TDOA) localization method is proposed. The theoretical...
Practical low complexity time of arrival (TOA) estimation method with high accuracy is attractive in ultra wideband (UWB) ranging and localization. In this paper, a generalized maximum likelihood energy detection (GML-ED) ranging method is proposed and implemented. It offers low complexity and can be applied in various environments. An error model is firstly introduced for TOA accuracy evaluation,...
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.