GPS signal detection using hypothesis testing analysis are given by using the generalized likelihood ratio test (GLRT) approach, applying the model of intermediate frequency (IF) GPS signal of one satellite in white Gaussian noise. The test statistic follows central or noncentral F distribution and is nearly identical to central or noncentral chi-squared distribution because the processing samp...

This paper considers the detection of a distributed target, which is important in high resolution radars (HRRs). We focus on the practical scenario where only partial observation is available. The key contribution of this work is the proposition of a generalized likelihood ratio test (GLRT) detector using matrix completion (MC). Firstly, a decision rule is obtained for the hypothesis test model...

We investigate the use of Bayesian methods for hyperspectral subpixel target detection, where uncertainty associated with fill factor is “probabilized” by a suitable prior. Specifically, we present general framework detection employing different models background distribution, comparing choices prior, and investigating numerical schemes evaluating integral. The are furthermore compared to their...

We present a framework for the analysis of frame synchronization based on Synchronization Words (SWs), where the detection is based on the common sequential algorithm: the received samples are observed over a window of length equal to the SW; over this window a metric (e.g. correlation) is computed; a SW is declared if the computed metric is greater than a proper threshold, otherwise the observ...

As the security of global navigation satellite systems (GNSSs) for civilian usage is increasingly important, message authentication (NMA) significantly improves resilience to spoofing attacks. However, not all attacks can be effectively countered: a strong variant replay/relay attacks, distance-decreasing (DD) shorten pseudorange measurements, without manipulating cryptographically protected me...

A generalized likelihood ratio test is considered for testing acoustic propagation models in the context of environmental parameter inversion. In the following, we use the term \hierarchy of models" to denote a sequence of model structures M1;M2;... in which each particular model structure Mn contains all previous ones as special cases. We propose a combined parameter estimation and multiple se...

Direct blast, a strong interference in bistatic sonar, is difficult to suppress because of multipath propagation for blasts and signals. A generalized likelihood ratio test (GLRT)-based detection scheme the frequency domain received signals was proposed, unknown parameters were estimated using maximum estimate (MLE) under environment. The distributions statistic detectors known noise power give...

AC power lines have been considered as a convenient and low-cost medium for intra-building automation systems. In this paper, we investigate the problem of estimating the channel order and root mean squared (RMS) delay spread associated with the power lines, which are channel parameters that provide important information for determining the data transmission rate and designing appropriate equal...

In high-resolution maritime surveillance radars, sea clutter exhibits highly spatial heterogeneity due to modulation of long waves with wavelengths longer than the width one range cell. Compound-Gaussian model (CGM) fails characterize heterogeneous in both amplitude distribution and Doppler spectrum. this article, a bi-phase compound-Gaussian mixture (BP-CGMM) is proposed clutter. BP-CGMM, reso...