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Control/structure co-design for planetary spacecraft with large flexible appendages

Classical control design techniques used for flexible spacecraft are based on single axis design approaches to control the rigid-body motion complemented by low-pass and notch filters to suppress the resonant peaks of the low-frequency flexible modes. These techniques are inherently relying on a priori knowledge of the structural flexible modes and introduce significant conservatism in the control and structural design, dictated by the need to separate the controller bandwidth from the flexible modes frequency.

United Kingdom

T205-121SA

AIRBUS DEFENCE AND SPACE...
A Simulator for Marine Litter Observation from Space

“Remote Sensing for Marine Litter - RESMALI” has identified the ideal parameters to study marine litter (ML) from space, including spectral bands with affordable signal-to-noise ratio (SNR) at top-of-atmosphere (TOA) level, in a range of wavelengths from visible to SWIR. To continue this path towards a dedicated mission, performance assessment against simulated real-case scenarios of ML is key. We want to build a simulator to estimate ML signal at TOA from a set of scenarios representing the various applications already targeted by the community (e.g.

France

20-D-T-TEC-01-k

ARGANS LIMITED
Mapping Windrows as Proxy for Marine Litter Monitoring from Space Remote sensing for marine litter - WASP

WASP is a prototype EO data processor, developed in the frame of the ESA Discovery Campaign on Remote Sensing of Plastic Marine Litter, exploiting Copernicus Sentinel-2 L1C images to detect and catalogue the presence of filaments of floating marine debris with high probability of containing anthropogenic litter.

UK

20-D-S-TEC-01-b

ARGANS LIMITED
MBSE Deployment for EnVision Science Mission Study

Following on from the successful Venus Express mission (2006 – 2014), the EnVision mission is a mission to observe the surface of Venus at an unprecedented resolution, investigating signs of active geology and looking for evidence of the past existence of oceans. EnVision is meant to help in the understanding of why this most Earth-like planet has turned out so differently and open a new era in the exploration of our closest neighbour. EnVision is proposed as a joint mission with NASA, with payload elements funded by the ESA Member States.

United Kingdom

20-P-M-SCI-01

AIRBUS DEFENCE AND SPACE...
Plastic waste and the Black Sea, monitoring litter at Sea and on the land from Sentinel-2 data

The Project 'Plastic waste and the Black Sea, monitoring litter at sea and on the land from Sentinel-2 data' was funded by the Discovery element of ESA's Basic Activities, and it had the following objectives:

  • To facilitate systematic marine debris detection by Earth observation for tracking them before they beach, if ever, by improving a detection algorithm already sketched and tested, and develop a true detector from it
  • To test various methodologies for the detection and identification of terrestrial illegal dumping sites

 

UK

20-D-T-TEC-01

ARGANS LIMITED
RESMALI: Remote Sensing for Marine Litter

According to the United Nation Environment Program (2005), “Marine Litter” is defined as any item that has been made or used by people and deliberately or accidently discarded either directly into the sea or coast or transported from land into the marine environment.

UK

15/075

ARGANS LIMITED

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