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Exploiting the received signals, which are usually not employed in the traditional OTH radar for ionospheric parameter estimation, we study joint estimation of target and ionospheric parameters for multiple-input multiple-output skywave OTH (MIMO-OTH) radar. We employ a parabolic layer model to characterize the ionospheric distortions. We model the target and ionospheric parameters as deterministic...
We consider a joint decentralized detection and estimation problem in which a number of sensor nodes collaborate to detect and estimate an unknown deterministic vector signal. To cope with the power/bandwidth constraints inherent in wireless sensor networks (WSNs), each sensor compresses its observations using a linear precoder. The compressed messages are transmitted to the fusion center (FC), where...
Parametric histogram equalization (PHEQ) is a simple and effective way to reduce noise and channel effects in automatic speech recognition. Recently, we proposed to adapt the PHEQ transform towards individual test utterance to further improve the performance of PHEQ. In this paper, we improve the adaptation of PHEQ by exploiting the correlation between speech feature elements. Previously, PHEQ is...
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