Articles de revista
Recent Submissions
-
Correcting the ADCS jitter induced blurring in small satellite imagery
(2020-09)
Article
Open AccessEarth Observation missions have increasingly demanding requirements, i.e., higher spatial resolutions and SNR, and lower revisit times, etc. High-resolution images have to be captured with precise pointing accuracy which ... -
Characterisation of copper and stainless steel surfaces treated with laser ablation surface engineering
(2021-07)
Article
Restricted access - publisher's policyIn the past few years, it has been established that Laser Ablation Surface Engineering (LASE) is a very effective way of producing surfaces which have Secondary Electron Yields (SEY)¿<¿1. This can be achieved with a variety ... -
Random-Walk laplacian for frequency analysis in periodic graphs
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-02-11)
Article
Open AccessThis paper presents the benefits of using the random-walk normalized Laplacian matrix as a graph-shift operator and defines the frequencies of a graph by the eigenvalues of this matrix. A criterion to order these frequencies ... -
Sea ice thickness estimation based on regression neural networks using L-band microwave radiometry data from the FSSCat mission
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-04-02)
Article
Open AccessSeveral methods have been developed to provide polar maps of sea ice thickness (SIT) from L-band brightness temperature (TB) and altimetry data. Current process-based inversion methods to yield SIT fail to address the ... -
Asymmetrical clipping optical filter bank multi-carrier modulation scheme
(2021-05)
Article
Restricted access - publisher's policyFilter bank multi-carrier (FBMC) is considered a promising alternative to the Orthogonal Frequency Division Multiplexing (OFDM) scheme. It improves spectral efficiency by eliminating the need for cyclic prefix while ... -
Quality of transmission estimator retraining for dynamic optimization in optical networks
(Institute of Electrical and Electronics Engineers (IEEE), 2021-04-01)
Article
Restricted access - publisher's policyOptical network optimization involves an algorithm and a physical layer model (PLM) to estimate the quality of transmission of connections while examining candidate optimization operations. In particular, the algorithm ... -
Spectral processing techniques for efficient monitoring in optical networks
(Institute of Electrical and Electronics Engineers (IEEE), 2021-07-01)
Article
Restricted access - publisher's policyHaving ubiquitous optical monitors in dense wavelength-division multiplexing (DWDM) or flex-grid networks allows the estimation in real time of crucial parameters. Such monitoring would be even more important in disaggregated ... -
Optical phase effects in reconfigurable microwave photonic filters with multiple wavelength input
(2021-11)
Article
Open AccessMicrowave photonic filters with a multiple wavelength input are analyzed. A comprehensive model assessing the impact of the phase characteristic of the optical stage is presented from which optimized design rules have been ... -
A novel RFI detection method for microwave radiometers using multilag correlators
(Institute of Electrical and Electronics Engineers (IEEE), 2021-02-10)
Article
Open AccessRadio frequency interference (RFI) is an increasing problem in microwave radiometry, particularly for Earth observation, because the antennas are pointing toward the Earth. RFI has been observed at the L-band in European ... -
On differential imaging using electromagnetic simulation for vehicular antenna signature analysis
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-05-30)
Article
Open AccessThe current trend in vehicles is to integrate a wide number of antennae and sensors operating at a variety of frequencies for sensing and communications. The integration of these antennae and sensors in the vehicle platform ... -
Algorithm for resonator parameter extraction from symmetrical and asymmetrical transmission responses
(IEEE Microwave Theory and Techniques Society, 2021-06-07)
Article
Open AccessWe describe an algorithm capable of extracting the unloaded quality factor and the resonant frequency of microwave resonators from vector S-parameters. Both symmetrical (Lorentzian) and asymmetrical (Fano) transmission ... -
Design and Testing of a Helix Antenna Deployment System for a 1U CubeSat
(Institute of Electrical and Electronics Engineers (IEEE), 2021-05)
Article
Open AccessCubeSats have revolutionized Earth Observation and space science, although their small size severely restricts satellite performance and payload. Antenna deployment from a stowed configuration in these small-satellites ...
RSS 1.0