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Estimating the number of sources impinging on an array of sensors is a well known and well investigated problem. Based on the rotational invariance property between two identical subarrays, using the Lanczos algorithm to fast compute the analysis filterbank of multi-stage wiener filter, a novel method for fast estimating the number of wideband sources is proposed in this paper. Unlike the traditional...
We demonstrate a ldquotrading time for signalrdquo approach for the measurement of species-specific optical transmission, in ambients rich in particulates, using the example case of a turbulent fluidized bed reactor. The method is introduced on the basis of Monte Carlo simulations, as well as analysis of experimental data, of beam propagation for a range of path lengths, and particle concentrations...
In this paper, we propose a cognitive radio-based multi-user resource allocation framework for mobile ad hoc networks using multi-carrier DS CDMA modulation over a frequency-selective fading channel. In particular, given pre-existing communications in the spectrum where the system is operating, in addition to potential narrow-band interference, a channel sensing and estimation mechanism is provided...
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