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.
In this paper we present ULANDreg testbed that consists of two European mask compliant impulse radio ultra-wideband (IR-UWB) transceivers with low data rate and medium range for data communication and distance measurement. The transmitter uses time hopping spread spectrum codes to reduce the peak to average ratio in the power spectral density and the receiver is based on a filter bank. The hardware/software...
This paper addresses the problem of synchronisation and data demodulation for impulse radio ultrawideband systems. A novel non-coherent non-data aided joint synchronization and data demodulation algorithm is proposed. The scheme consist of a coarse estimation phase which is performed over a single symbol period, followed by a fine synchronization stage that estimates the timing with high accuracy...
This paper deals with positioning in impulse radio UWB (IR-UWB) based on time-of-arrival (TOA) and direction-of-arrival (DOA). We consider array processing at the receiver which allows low complexity joint estimation of TOA and DOA in frequency domain, previously proposed by the authors. The use of array processing provides robustness and potentially allows positioning with a single reference node...
This paper proposes a simple yet accurate technique for the estimation of the time-of-arrival (TOA) and direction-of- arrival (DOA) for impulse radio UWB systems. We consider the use of array processing for the joint estimation of the TOA and the DOA which, in general, provides robustness and potentially allows positioning with a single reference node. The estimator is based on a fast low complexity...
This work presents an UWB testbed for reduced data rates with capabilities of measuring range and location. The transmitter uses time hopping spread spectrum codes to reduce the peak to average ratio in the power spectral density. The pulse generator is based on a class-S digital pulse amplifier and a step recover diode circuit. The antenna subsystem is based on a bow-tie topology. The approach for...
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.