Date

Attendees

Goals

Discussion items

Signal Processing Algorithm + tests

  • Synchronization board received
    • missing some parts (GPS)
  • Possible to control camera settings
  • Literature review on detection algorithms + some testing
    • Possible to predict chlorophyll with radiance
  • A little bit uncertainty on who will fly at Hopavågen

Summary of MDR outcomes

 

  • HSI mission is both a tech demonstrator (on-board processing and synoptic agent observations) and with oceanographic science as main motivation
  • Q1 2020 Launch is goal
  • Satellite shall preferably be a 8-10 PM SSO configuration with backup of 9-11 AM SSO configuration (more available launchers)
    • Low chance of detection (clouds) – need to observe April-June (3 months operational is minimum requirement)
  • Aim at 8 MNOK total for 2 satellite missions (includes training + integration on campus)
    • HSI mission will cost approx. 5 MNOK
  • S-band for both uplink and downlink
    • NTNU shall at best have full control of uplink or downlink
  • Investigate new HSI design (FICS), increase FoV and aperture to increase SNR (light to be captured)
    • Relaxes pointing requirements (0.1-1 deg accuracy; 2σ)
    • May indicate larger data products
    • Add another RGB camera for geo-referencing purposes
    • Start testing the current versions of HSI asap
  • Level 2 and 4 (scientific and operational respectively) are nominal data products – the rest is upon request from end-user
  • Coordinate with AUV groups (NTNU, UPorto), HSI mission shall support their field campaigns (Frøya, Svalbard, Azores)
  • We push for a 3U CubeSat
    • Compromises implementation of SDR
    • SDR would need a new mission design to emphasize it’s link and importance to HSI mission
    • Next mission in pipeline: SDR or HSI #2
    • 6U has more imaging + comms. flexibility, but will be a bit more expensive (however may include SDR).
  • Would like to have access to SDK (+ source code) for components regarding PhD and academic purposes (also align PhD goals with mission success criteria)
  • Shall follow IOD CubeSat standard
  • Make a comparison of NTNU SmallSat and other competitors (CubeSats and large EO sats)

Onboard Data Processing Pipeline

  • Survey of Hyperspectral imaging algorithmsfor ocean application
    • Workshop with Ajit («HICO_instructions» file on gdrive)
  • Spatial Compression JPEG2000
    • Compression analysis for HICO and AVIRIS data,
    •  work on software adaptation of existing OpenJPEG library for ARM processors ,
  • Spectral&Spatial Comression CCSD123
    • Compression analysis for HICO and AVIRIS data
    • Work on hardware implementation of  BIP mode
  • Spectral Compression PCA
    • state-of-the art study for Hardware implementation  of algorithms for eigenvalues/vector pairs
  • Anomaly Detection Algorithm
    • State of the art study of hardware realizations
    • Testing HICO data
  • EMSC - Work on software realization adapted for ARM processors
  • Prototype – Study of sensor protocols

HW - Julian

 

  • PCBs received. Soldering is almost done (he’s showing it in the meeting)
  • All design is on wiki
  • Working with Fred to get an optical design that fits the PCB
  • Dennis will write the drivers for it
  • Milica’s group can then also start working on it
  • Optical assembly in clean room is not critical
  • Optical design - Still isn’t done

Other things

 

Someone needs to work on the RGB camera

 

  • Georeferencing
  • Focus on characterizing the HSI camera first
    • Use that as input to deciding the RBG camera for flight
  • Make a student project?
    • Amund and Joao/Evelyn think of a master thesis project (COTS-camera) for georeferencing purpose
    • Maybe use Fred’s camera as a start
    • Doesn’t need to be on-board. Just synchronized
  • NUTS has a RGB camera – can we connect it to the Zync-board?
  • For satellite flight, any interface should be available for it (LVDS, SPI)

 

 

Deconvolution – someone needs to work on it

 

  • Who can do it?
  • When we capture data as push-broom, each line will overlap with the previous one. We will have much more lines than we really want (10x)
  • Improve resolution along-track (750m) to 40m. Need deconvolution to mash together different lines and improve resolution
  • There was a master student working on it, but there is still a lot to be done. Not really much implementation.
  • Other options
    • Image fusion
    • Super resolution algorithms
  • Need a master thesis
    • Mariusz will talk with Tor Arne about its

 


 

Action items