Ground segment
View article
CLARA-A2: the second edition of the CM SAF cloud and radiation data record from 34 years of global AVHRR data Open
The second edition of the satellite-derived climate data record CLARA (The CM SAF Cloud, Albedo And Surface Radiation dataset from AVHRR data – second edition denoted as CLARA-A2) is described. The data record covers the 34-year period fro…
View article
L2D2 Open
Large constellations of Low Earth Orbit satellites promise to provide near real-time high-resolution Earth imagery. Yet, getting this large amount of data back to Earth is challenging because of their low orbits and fast motion through spa…
View article
The Copernicus Polar Ice and Snow Topography Altimeter (CRISTAL) high-priority candidate mission Open
The Copernicus Polar Ice and Snow Topography Altimeter (CRISTAL) mission is one of six high-priority candidate missions (HPCMs) under consideration by the European Commission to enlarge the Copernicus Space Component. Together, the high-pr…
View article
GndNet: Fast Ground Plane Estimation and Point Cloud Segmentation for Autonomous Vehicles Open
International audience
View article
A Review of Multibeam Phased Array Antennas as LEO Satellite Constellation Ground Station Open
Small satellites in low Earth orbit (LEO) are typically organized as a satellite constellation. The satellite number of a LEO satellite constellation would be several hundred or even tens of thousands to realize a fully global coverage. Th…
View article
European Ground Motion Service (EGMS) Open
Interferometric processing of a time series of acquisitions from synthetic aperture radar (SAR) satellites makes it possible to detect and measure ground motion phenomena, typically caused by landslides, subsidence, earthquakes or volcanic…
View article
The SVOM mission Open
The Sino-French space mission SVOM is mainly designed to detect, localize and follow-up Gamma-Ray Bursts and other high-energy transients. The satellite, to be launched mid 2023, embarks two wide-field gamma-ray instruments and two narrow-…
View article
FedSpace: An Efficient Federated Learning Framework at Satellites and Ground Stations Open
Large-scale deployments of low Earth orbit (LEO) satellites collect massive amount of Earth imageries and sensor data, which can empower machine learning (ML) to address global challenges such as real-time disaster navigation and mitigatio…
View article
DSCOVR/EPIC-derived global hourly and daily downward shortwave and photosynthetically active radiation data at 0.1° × 0.1° resolution Open
Downward shortwave radiation (SW) and photosynthetically active radiation (PAR) play crucial roles in Earth system dynamics. Spaceborne remote sensing techniques provide a unique means for mapping accurate spatiotemporally continuous SW–PA…
View article
Magnetospheric Multiscale Instrument Suite Operations and Data System Open
The four Magnetospheric Multiscale (MMS) spacecraft will collect a combined volume of ∼100 gigabits per day of particle and field data. On average, only 4 gigabits of that volume can be transmitted to the ground. To maximize the scientific…
View article
Sentinel-1 Mission Status Open
As part of the European Copernicus programme, the Sentinel-1 mission, based on a constellation of two SAR satellites, ensures continuity for Europe of C-band SAR observations. Sentinel-1A and Sentinel-1B were respectively launched from Kou…
View article
THE NEW HYPERSPECTRAL SENSOR DESIS ON THE MULTI-PAYLOAD PLATFORM MUSES INSTALLED ON THE ISS Open
The new hyperspectral instrument DLR Earth Sensing Imaging Spectrometer (DESIS) will be developed and integrated in the Multi-User-System for Earth Sensing (MUSES) platform installed on the International Space Station (ISS). The DESIS inst…
View article
Earth Observation Mission of a 6U CubeSat with a 5-Meter Resolution for Wildfire Image Classification Using Convolution Neural Network Approach Open
The KITSUNE satellite is a 6-unit CubeSat platform with the main mission of 5-m-class Earth observation in low Earth orbit (LEO), and the payload is developed with a 31.4 MP commercial off-the-shelf sensor, customized optics, and a camera …
View article
THE NEW HYPERSPECTRAL SENSOR DESIS ON THE MULTI-PAYLOAD PLATFORM MUSES INSTALLED ON THE ISS Open
The new hyperspectral instrument DLR Earth Sensing Imaging Spectrometer (DESIS) will be developed and integrated in the Multi-User-System for Earth Sensing (MUSES) platform installed on the International Space Station (ISS). The DESIS inst…
View article
Geo-Localization via Ground-to-Satellite Cross-View Image Retrieval Open
The large variation of viewpoint and irrelevant content around the target always hinder accurate image retrieval and its subsequent tasks. In this paper, we investigate an extremely challenging task: given a ground-view image of a landmark…
View article
Capacity Statistics Evaluation for Next Generation Broadband MEO Satellite Systems Open
In this paper, the performance of a reference Medium Earth Orbit (MEO) satellite constellation system operating at Ka-band and employing single links to ground is compared with next generation advanced systems in higher RF or optical bands…
View article
OLCI A/B Tandem Phase Analysis, Part 1: Level 1 Homogenisation and Harmonisation Open
Copernicus is a European system for monitoring the Earth in support of European policy. It includes the Sentinel-3 satellite mission which provides reliable and up-to-date measurements of the ocean, atmosphere, cryosphere, and land. To ful…
View article
Kepler � Satellite Navigation without Clocks and Ground Infrastructure Open
Global Navigation Satellite Systems receivers use pseudorange measurements for positioning and time determination. The control system uses the same measurements for estimating the satellite orbits, clock offsets and signal biases in a comp…
View article
The EarthCARE Mission – Science and System Overview Open
The Earth Cloud Aerosol and Radiation Explorer (EarthCARE) is a satellite mission implemented by the European Space Agency (ESA) in cooperation with the Japan Aerospace Exploration Agency (JAXA) to measure global profiles of aerosols, clou…
View article
Optical communications for small satellites Open
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2015.
View article
A community-driven approach to democratize access to satellite ground stations Open
Should you decide to launch a nano-satellite today in Low-Earth Orbit (LEO), the cost of renting ground station communication infrastructure is likely to significantly exceed your launch costs. While space launch costs have lowered signifi…
View article
YOLO-OSD: Optimized Ship Detection and Localization in Multiresolution SAR Satellite Images Using a Hybrid Data-Model Centric Approach Open
With the advancements in space technology and the development of lightweight synthetic aperture radar (SAR) satellites by commercial companies, such as ICEYE, Capella Space and Umbra, SAR images have become available on a wide scale. Ship …
View article
Design and development of ground station for UAV/UGV heterogeneous collaborative system Open
Unmanned Aerial Vehicle/Unmanned Ground Vehicle heterogeneous collaborative system can complete complex tasks. In order to monitor and control the two agents simultaneously, a comprehensive ground station is designed. First, the preliminar…
View article
Development status and breadboard results of a laser communication terminal for large LEO constellations Open
Several operators plan to launch mega-constellations of several hundred or even thousands of satellites over the next years to provide global, high-speed and secure backbone communications. Most of these constellations will use a hybrid ap…
View article
The EarthCARE Mission: Science Data Processing Chain Overview Open
The Earth Cloud Aerosol and Radiation Explorer (EarthCARE) is a satellite mission implemented by the European Space Agency (ESA) in cooperation with the Japan Aerospace Exploration Agency (JAXA) to measure global profiles of aerosols, clou…
View article
CLARA-A2: The second edition of the CM SAF cloud andradiation data record from 34 years of global AVHRR data Open
The second edition of the satellite-derived climate data record CLARA ("The CM SAF cLoud, Albedo and surface RAdiation dataset from AVHRR data" – second edition denoted CLARA-A2) is described. The data record covers the 34-year period from…
View article
Trusted Autonomous Operations of Distributed Satellite Systems Using Optical Sensors Open
Recent developments in Distributed Satellite Systems (DSS) have undoubtedly increased mission value due to the ability to reconfigure the spacecraft cluster/formation and incrementally add new or update older satellites in the formation. T…
View article
A Framework for Satellite-Based 3D Cloud Data: An Overview of the VIIRS Cloud Base Height Retrieval and User Engagement for Aviation Applications Open
Satellites have provided decades of valuable cloud observations, but the data from conventional passive radiometers are biased toward information from at or near cloud top. Tied with the Joint Polar Satellite System (JPSS) Visible Infrared…
View article
GBOV (Ground-Based Observation for Validation): A Copernicus Service for Validation of Vegetation Land Products Open
The Copernicus Ground-Based Observations for Validation (GBOV) service aims to develop and distribute robust in-situ datasets from a selection of ground-based monitoring sites for a systematic and quantitative validation of Earth Observati…
View article
Towards SDN/NFV-enabled satellite ground segment systems: End-to-End Traffic Engineering use case Open
Key features of satellite communications such as
\nwide-scale coverage, broadcast/multicast support and high
\navailability, together with significant amounts of new satellite
\ncapacity coming online, anticipate new opportunities for sate…