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In large-scale sensor network, self-locating a sensor node is important in order to monitor events occurring in surroundings. A distance to a reference point is key information to estimate location of a sensor node. In this paper, we propose TDOA-based distance estimation to improve accuracy in a distance to a reference point where a mobile beacon broadcast its absolute position. For locating asynchronous...
This paper proposes a robust two-channel frequency selective multiple signal classification (MUSIC) method to find a direction of arrival (DoA) information of speech signal. To overcome a phase distortion caused by reverberation and background noise in real acoustic room environments, we adopt a least square (LS)-based phase estimation method. In the phase compensation stage, distorted phases are...
We are interested in describing the biological phenomenon of the time of serorevertion or death due to AIDS. By the serorevertion, we mean the cleansing of maternally derived antibodies against HIV by seropositive children without HIV infection, and the survival is related to how long HIV infected children survive. In order to perform a posteriori descriptions of retrospective data related to babies...
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