نتایج جستجو برای: in acquisition phase
تعداد نتایج: 17080634 فیلتر نتایج به سال:
This paper presents a performance analysis of a novel searcher designed for array antenna in terms of average acquisition time as well as detection and false alarm probability. It has been shown that proposed searcher significantly reduces the acquisition time compared to the conventional searcher, which does not exploit the merit of array antenna structure. Due to the shortened acquisition tim...
The reverse engineering process represents one of the best known methodologies for creating threedimensional (3D) virtual models starting from physical ones. Even if in the last few years its usage has significantly increased, the remarkable involvement of the operator has until now represented a significant constraint for its growth. Having regard to the fact that this process, and in particul...
Synchronization in physical layer of wireless sensor networks is critical in restricting complexity of tag node and power consumption. Considering the master-to-tag communication (i.e., receiving signal from a master or anchor node by tag nodes), we propose a scheme on the basis of the principles of feedback control, to transfer the signal acquisition functionality from the tag receivers to the...
BACKGROUND Consensus for methicillin-resistant Staphylococcus aureus (MRSA) control has still not been reached. We hypothesised that use of rapid MRSA detection followed by contact precautions and single room isolation would reduce MRSA acquisition. METHODS This study was a pre-planned prospective interrupted time series comparing rapid PCR detection and use of long sleeved gowns and gloves (...
By observing visual landmarks it is possible to continuously update an estimated robot position while the robot is moving. In particular, using a triangulation algorithm based on three landmarks the robot position can be estimated each time three landmarks are observed. If the selected landmark triplet is an optimal triplet, the estimated robot position is accurate and errors do not accumulate....
Wireless communication is the major form of connection nowadays. In most cases it exploits the benefits of the spread spectrum techniques to overcome channel introduced corruptions like Doppler residual frequency, noise, interference and jamming. These techniques also enhance the security and quality of the link. Using long spreading pseudo-noise codes provides further security for the link tho...
BACKGROUND AND PURPOSE Variability in computed tomography angiography (CTA) acquisitions may be one explanation for the modest accuracy of the spot sign for predicting intracerebral hemorrhage expansion detected in the multicenter Predicting Hematoma Growth and Outcome in Intracerebral Hemorrhage Using Contrast Bolus CT (PREDICT) study. This study aimed to determine the frequency of the spot si...
although the majority of linguists believing in chomskyan revolution have no doubt about the presence of ug in ll acquisition, its availability in l2 acquisition _in general, and in adult l2 acquisition in particular, is controversial. on the one hand, there are proponents of the access to ug in l2 acquisition, lidia white for example, says: therange of option available to the second language l...
In this paper, we first investigate the effect of residual code phase offset on the direct-sequence code-division multiple-access code acquisition scheme using a noncoherent matched filter receiver. We then propose a new code acquisition scheme that is robust to the variation of the residual code phase offset and outperforms the conventional scheme. When the code phase offset normalized to the ...
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