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 multichannel systems, acoustic time delay estimation (TDE) is a challenging problem in reverberant environments. Although blind system identification (BSI) based methods have been proposed which utilize a realistic signal model for the room impulse response (RIR), their TDE performance depends strongly on that of the BSI, which is often inaccurate in practice when the identified responses are under-modelled...
In room acoustics, the under-modelled blind system identification (BSI) problem arises when the identified room impulse response (RIR) is shorter than the real one. Conventional BSI methods can perform poorly under these circumstances. In this paper, we propose an algorithm for multichannel BSI in under-modelled situations. Instead of minimizing the cross-relation error, a new optimization criterion...
To avoid collisions of calling from users of the same dell group, the technique of listen-before-transmit (LBT) is employed in in the Third Generation High Frequency Automatic Link Establishment. In this paper a signal detection method based on the transformed sample auto-correlation matrix is proposed for the LBT. This method makes use of the property that the signal is usually pertinent, while the...
Forest fires are devastating disasters, which are considered as the most serious disasters at the 21 century. When forest fires occur, ignition points have not yet developed for many unmanned area and away from the roads and railways. Therefore, precision positioning of the ignition point and fire-fighting forces and analysis of fires regional distribution are particularly important. In this paper,...
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.