منابع مشابه
Reprint Direction Finding in IEEE802.11 Wireless Networks
A novel direction-finding method for stations of IEEE802.11 wireless local area networks is presented in this paper. The method uses a switched beam array for determining the direction of arrival of the incident electromagnetic field in a time efficient way and associates certain medium access control MAC layer functions with different radiation patterns of the switched antenna array, in order ...
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Antenna arrays are likely to be an important feature of future mobile communication systems. With an antenna array, mobile users can be separated by a spatial filtering procedure allowing several users on the same carrier frequency. The uplink part (mobile to base) not only can, but is better solved without using any spatial knowledge in terms of direction of arrival (DOA). However, DOA estimat...
متن کاملGenetic Algorithms in Direction Finding
Passive receiving systems are used to intercept emissions of interest, both communication and Radar, and to measure their characteristic parameters in order to classify and possibly identify them. Direction of Arrival (DOA) is one of the most important parameters to be measured, as it can yield a localization fix by means of triangulation (if more receivers are dislocated on the area), or howev...
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We present the design of a remotely deployable distributed wireless antenna system formed from wireless sensor network nodes. Specifically, the focus is on enhancing the detection range of a distributed wireless antenna system. The primary objective is to create a methodology to steer the beam in the desired direction to enhance radio frequency (RF) direction finding and follow-on signal recept...
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ژورنال
عنوان ژورنال: Nature
سال: 1948
ISSN: 0028-0836,1476-4687
DOI: 10.1038/161375a0