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.
Autonomous Aerial Vehicle equipped with RF sensor provides a promising solution for a wide range of applications including search and rescue, vehicle localization, and navigation. We investigate such a micro UAV system and localization and navigation algorithms based on RF sensing. Our algorithm uses a particle filtering process to continuously monitor the RF signal from the target and estimate its...
We investigate a vision-based vehicle tracking method which allows an unmanned aeriel vehicle(UAV) to track and follow a ground vehicle in coordinated Air-Ground operations. The UAV detects a customized Apriltag attached on the ground vehicle and estimates its motion status. We use a novel embedded-tag design to allow the UAV detect and lock the ground vehicle in both high and low altitude. The dynamic...
We propose in this paper a robust multi-resolution technique to estimate dense velocity field from image sequences. It couples a Gaussian pyramidal down-sampling decomposition together with a multi-grid approach. At each pyramid level, bilinear interpolation and efficient warping techniques are performed to generate a residual images. The displacement field is computed in a Markov random field (MRF)...
A partial scan approach proposed recently selects scan signals without considering the availability of the ip-ops (FFs). Such an approach can greatly reduce the number of scan signals since maximum freedom is allowed in scan signal selection. To actually scan the selected signals, we, however, must make them FF-driving signals. In this paper, we study the problem of modifying and retiming a circuit...
With the rapid progress of femtosecond laser technology, femtosecond laser pump-probe technology has been introduced into the domain of ultrafast measurement in material science. Tb0.3Dy0.7Fe2 giant magnetostrictive thin films were prepared by DC magnetron sputtering. A femtosecond laser experimental device has been designed to investigate optical and terahertz (THz) dynamic response property of TbDyFe...
Till now most efforts in low power logic synthesis have concentrated on minimizing the total switching activity of a circuit under a zero delay model. This simplification ignores the effects of glitch transitions which may contribute as much as 30% of the total power consumption of a circuit. Hence, low power logic synthesis techniques which optimize power under a zero delay model are often not successful...
In this paper, we present several optimization techniques for power reduction utilizing circuit symmetries. There are four kinds of symmetries that we detect in a given circuit implementation. First, we propose an algorithm for detecting the four different types of symmetries in a given circuit implementation of a Boolean function. Several re-synthesis techniques utilizing such symmetries are proposed...
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.