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.
This paper presents an effective and fast algorithm to detect and track low observable targets in a digital image sequence. At first, we use Total Variation (TV) filtering technique to improve the Signal to Noise Ratio (SNR) and remove the noise in the input image. Following this step, an encoding scheme along with genetic operation is designed to track the targets. To avoid missing any tracks, the...
Due to the coexistence of different generations of mobile radio technologies, more and more mobile network operators are keen on deploying multiple radio technologies on a single cell site and carry their traffic over a common transport network. This paper studies such a collocated multiradio system: collocated LTE and HSDPA. Firstly, we investigate the potential gain by using a shared transport network...
In offshore hydrocarbon explorations, both the magnetotelluric (MT) method and the controlled-source electromagnetic (CSEM) method have been widely used. The MT method uses the electromagnetic fields due to natural sources that can be modeled by using plane waves. It has a relatively large depth of investigation and can be effectively used to obtain rough conductivity estimate of the subsurface. On...
Based on high order hierarchical vector function, the finite-element time-domain (FETD) method combined with tearing and interconnecting (TI) algorithm is presented. This method is efficient for time domain analysis of substrate integrated waveguide (SIW) structures, since the SIW structures have a lot of fine via holes. By means of the high order hierarchical vector function, the accuracy and ability...
Schrodinger equation and Poisson equation are solved self-consistently for Al0.5Ga0.5N/GaN heterojunctions grown along the c axis, then the distribution of electrons and the exact energy of all the bounded states confined in heterojunctions are gotten, and the electrons are found to take up the first two subbands. Considerable magnitude of Rashba spin splitting for the first subband at the Fermi level...
A differential-algebraic method is used to estimate the rotor time constant TR of an induction motor without measurements of the rotor speed/position. The method consists of solving for the roots of a polynomial equation in TR whose coefficients depend only on the stator currents, stator voltages, and their derivatives. Experimental results are presented
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.