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Task marked complete
Date
Attendees
Goals
- Any updates on Gantt chart?
- Follow ups on action items
- Status and challenges
Standup items
| Time | Item | Who | Notes |
|---|---|---|---|
| 5 min | HSI data | Unknown User (joaoff) |
|
| 5 min | Software | Unknown User (orlandic) |
|
| 5-10 min | Hardware | Unknown User (julianve) |
|
| 5 min | IdleTechs | Jan Otto |
|
| 5 min | Mission Design | Mariusz Eivind Grøtte |
|
| 5 min | Thermal | Unknown User (sivertba) |
|
| 5 min | Comms. | Unknown User (rogerbi) |
|
Action items
- Unknown User (santora) Request requirements for the RCN technical report due 10th Nov (and review presentation 6th of December) from Tor Arne
- Unknown User (julianve) and Unknown User (santora)Get information on the dimensions of Fred’s lenses for CAD drawings
- Lenses aperture
- Lenses focal length
- Slit width and height (seems extremely small??)
- Get a person/student to do the mechanical drawings
- Unknown User (julianve) and Unknown User (santora) Find a student for thermal testing (both physical hardware and thermal simulations for CAD)
- Unknown User (julianve) and Unknown User (santora) Draw a prototype CAD for encasing around lenses (the CAD we have now is difficult)
- Unknown User (rogerbi) Get access to wiki for Jan Otto and Julian
- Unknown User (santora) Simulate slew maneuver with specified push-broom scanning and GSD<100 m
- Unknown User (orlandic) Find student to do JPEG2000 compression work
Status on follow-ups in last weeks meetings
Data from HSI
- Joao is writing a report on what has been done on HSI imaging with drones.
- Developing a statistically sound method for determining signal/noise levels.
- Working on SNR number
- Working on what has been done in three drone campaigns
Hardware
- Julian has ordered HW parts (devboard etc.)
- Mariusz has designed the CAD for HSI lenses (more action items on it below)
- Focal lengths should be ok but unsure about apertures
- Julian needs to see how it fits on PCB
- First PCB still in revision
- Please put in more here Julian
HSI Camera discussion
- Going through Fred’s calculations for version 4
- Slit width too small?
- Bits/pixel
- Binning
SNR
- Treating it differently than usual definition
- Generalizing such that we take out what we want to see, but treat unwanted spectral responses as noise
- Read-out noise, background noise, dark current noise
- RMS values assumed (not peak values)
Software
- Software architecture
- Talks about stages of processing
- Please put in here Milica
IdleTechs
- A memo for data compression has been started on,
- listing some requirements for compression
- outlining a solution
- commenting on how well the suggested solution fits to the requirements.
- A copy can be found in the project wiki.
- A preliminary estimate indicates that the data from one patch can be compressed to be downloadable in less than one minute through a 1 Mbit/s link (S-band).
Communications
- None
Mission Design
- Has investigated on technicalities for slewing maneuver such as:
- Pitch-Roll-Yaw sequence (what order is optimal in terms of time and energy)
- Investigated slewing functionality in STK
- Set 1 deg/s and 0.1 deg/s^2 constraints
- Max slew time = 30 sec
- Adaptive step size control
- Start slew at line of sight
- GSD = 100 m
- Need to figure out power consumption
- Limitations on ground precision
- Analysis of time-window for observation (morning), 3 access times (4th is not viable)
- First pass: 1 min
- Second pass: 3 min
- Third pass: 55 seconds
- Lost access to license for EOIR-add on in STK but
- Done some reading on how it works
- integrate with MODTRAN (separate software costs 4000 USD)
- may get spectral response with own-defined resolution (transmission and reflectance)
- may model BRDF properties of ocean
- photon flux/photon detectors
- assumes unpolarized sensor
- saturation may be enabled
- Figures out SNR due to sensor dark noise and scene photon noise (background radiance/electrons)
- Expect graphs/simulations/results next week!
Actions ahead
- Mariusz: Request requirements for the RCN technical report due 10th Nov (and review presentation 6th of December) from Tor Arne
- Mariusz and Julian: Get information on the dimensions of Fred’s lenses for CAD drawings
- Lenses aperture
- Lenses focal length
- Slit width and height (seems extremely small??)
- Get a person/student to do the mechanical drawings
- Mariusz and Julian: Find a student for thermal testing (both physical hardware and thermal simulations for CAD)
- Mariusz and Julian: Draw a prototype CAD for encasing around lenses (the CAD we have now is difficult)
- Roger: access to wiki for Jan Otto and Julian
- Simulate slew maneuver with specified push-broom scanning and GSD<100 m
- Find student to do JPEG2000 compression
- All: update Gantt chart