In this contribution we consider the precision of the ̄oated and the ®xed GPS baseline for the case of weighted ionosphere. Canonical forms of the baseline variance matrices are developed for di€erent measurement scenarios. These forms make the relation between the various variance matrices transparent and thus present a simple way of studying their relative merits. It is also shown how these c...

In this paper, a vector channel madel is pposed and some statistical pmperties of the asymptotic efficiency of the decorrelating detector with base-station awys are investigated. It is shown that we can get gain over the conventional deamlator by employing antenna arrays and the gain i n " s as the number of antennas inneases and the angle dispersion It is also shown that we can increase the as...

In [1], Aujol, et. al. make the observation that the cartoon and texture components of the decomposition of an image should not be correlated, as they are generated from independent processes. They use this observation in order to choose an optimal fidelity parameter λ for the decomposition process. However this determination can be quite inefficient since a wide range of parameters λ must be s...

Under natural viewing conditions, small movements of the eye and body prevent the maintenance of a steady direction of gaze. It is known that stimuli tend to fade when they are stabilized on the retina for several seconds. However, it is unclear whether the physiological self-motion of the retinal image serves a visual purpose during the brief periods of natural visual fixation. This study exam...

In the process Interferometric Synthetic Aperture Radar (InSAR) derived Digital Elevation Models (DEMs), coherence enhances the raw interferograms in order to achieve a good estimation of the difference in the optical paths related to topography. Furthermore, it is an important parameter qualifying the accuracy of the interferometric measurements. The aim of this study is to examine the effect ...

The Qinghai–Tibet Plateau (QTP) is heavily affected by climate change and has been undergoing serious permafrost degradation due to global warming. Synthetic aperture radar interferometry (InSAR) has been a significant tool for mapping surface features or measuring physical parameters, such as soil moisture, active layer thickness, that can be used for permafrost modelling. This study analyzed ...

Measurements of longitudinal flow correlations are presented for charged particles in the pseudorapidity range |η| < 2.4 using 7 μb−1 and 470 μb−1 of Pb+Pb collisions at √ sNN = 2.76 and 5.02 TeV, respectively, recorded by the ATLAS detector at the LHC. It is found that the correlation between the harmonic flow coefficients vn measured in two separated η intervals does not factorise into the pr...

In this paper we analyze and extend a class of adaptive networks for second order blind decorrelation of instantaneous signal mixtures Firstly we compare the performance of the decorrelation neural network employing global knowledge of the adaptive coe cients with a similar structure whose coe cients are adapted via lo cal output connections Through statistical analyses the convergence behavior...

Band selection for remotely sensed image data is an effective means to mitigate the curse of dimensionality. Many criteria have been suggested in the past for optimal band selection. In this paper, a joint band-prioritization and band-decorrelation approach to band selection is considered for hyperspectral image classification. The proposed band prioritization is a method based on the eigen (sp...

A differential global positioning system (DGPS) is one of the most widely used augmentation systems for a low-cost L1 (1575.42 MHz) single-frequency GPS receiver. The positioning accuracy of a low-cost GPS receiver decreases because of the spatial decorrelation between the reference station (RS) of the DGPS and the users. Hence, a network real-time kinematic (RTK) solution is used to reduce the...