We consider the Useful Informational Energy introduced by L. Pardo [5]. Our purpose is to study the asymptotic distribution of its analogue estimator, in a random and stratified sampling, as well as its application to testing hypotheses.

Compressive sampling is a well-known approach to reconstruct sparse signals based on a limited number of measurements. In spectrum sensing applications for cognitive radio though, only reconstruction of the power spectrum of the signal is required, instead of the signal itself. In this paper, we present a new method for power spectrum reconstruction based on samples produced by a sub-Nyquist ra...

High-speed blades are often prone to fatigue due to severe blade vibrations. In particular, synchronous vibrations can cause irreversible damages to the blade. Blade tip-timing methods (BTT) have become a promising way to monitor blade vibrations. However, synchronous vibrations are unsuitably monitored by uniform BTT sampling. Therefore, non-equally mounted probes have been used, which will re...

Phototransduction biophysics comprises intracellular molecular reactions and ion fluxes through ion channels on the photoreceptor membrane that converts light into an electrical signal. Phototransduction biophysics serves the purpose of counting photons and integrating these counts to an estimate – a macroscopic voltage response – of light changes from a small area of visual space. To do this t...

1 Models 2 1.1 Matrix factorisation models . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Matrix factorisation with ARD and importance values . . . . . . . . . . . . . 8 1.3 Hybrid matrix factorisation model . . . . . . . . . . . . . . . . . . . . . . . . 10 1.3.1 Model definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.3.2 Gibbs sampler . . . . . . . . . ....

This work was carried out to improve the probability of interception of frequency sweep and lower the system complexity of non-sweep mode of the electronic intelligence system for frequency agile radar signal. A low complexity receiver structure and its associated demodulation algorithm with high probability of intercept are also presented. Moreover, the applicability of this structure for the ...

In this paper we consider systems for demodulation/modulation which use periodically nonuniform sampling (of arbitrary order) of the bandpass signal to circumvent the carrier-frequency restrictions of uniform sampling. The design of a particular tapped-delay-line (demodulation) or piecewise-constant-impulseresponse (modulation) equivalent filter determines both the actual implementation filters...

We suggest an adaptive sampling rule for obtaining information from noisy signals using wavelet methods. The technique involves increasing the sampling rate when relatively high-frequency terms are incorporated into the wavelet estimator, and decreasing it when, again using thresholded terms as an empirical guide, signal complexity is judged to have decreased. Through sampling in this way the a...

The linear canonical transform (LCT) has proven to be a powerful tool in optics and signal processing. Most existing sampling theories of this transform were derived from the LCT band-limited signal viewpoint. However, in the real world, many analog signals encountered in practical engineering applications are non-bandlimited. The purpose of this paper is to derive sampling theorems of the LCT ...