- Call to Order
- Roll Call and Affiliation Declaration
Alessandro Cotrufo, Aresys
Shaunak De, Capella
Rudi Gens, ASF
SiriJodha Khalsa, IEEE GRSS SA
Robert Johnston, Valkyrie
SireJodha Khalsa, IEEE
Jim Klucar, Capella
Masato Ohki, JAXA
Leland Pierce, University of Michigan
Daniel Pressler, Valkyrie
Wade Schwartzkopf, NGA
Mike Stewart, Valkyrie
Marc Trachy, Valkyrie
Adam Villareal, Valkyrie
Paul Woodford, Umbra - Approval of Agenda
Marc Trachy moved, Mike Stewart seconded
No discussion, approved - Approval of Previous Meeting Minutes
SiriJodha Khalsa moved, Bob Johnston seconded
No discussion, approved - IEEE SA Patent & Copyright Policies; Participant Behavior
Patent and copyright slides were shown and discussed by the chair. Chair provided an opportunity for participants to identify patent claim(s)/patent application claim(s) and/or the holder of patent claim(s)/patent application claim(s) of which the participant is personally aware and that may be essential for the use of that standard.
No discussion. - Draft Update/GITHUB Issues/PRs
The new ErrorStatistics pull request was reviewed. It captures the uncertainty in position and velocity of the sensor. It was a substantial module that took a significant amount of work to complete. The final structure is 2 consistent covariance matrices, rather than a set of condition monostatic/bistatic fields.
A pull request was reviewed on radiometric descriptions. The proposal that the working group is pushing forward uses a dB rather than linear scale. This is a departure from the typical radiometric description in many sensor-specific SLC formats, but the belief is that it may result in smaller residual errors.
A proposed change in the naming of the window/weighting fields was presented and there were no objections.
There is still some uncertainty with regard to how to structure the ImageFormation substructure, so a request was made to the group for suggestions on how to do this most cleanly.
A decision was made to combine tropospheric and ionospheric uncertainty into an overall slant delay uncertainty, since it is difficult to disentangle the various sources of that uncertainty. - Unfinished Business/Action Item Review
Polarization and ImagePosition were identified as the 2 most significant remaining technical sections of the standard.
The group is also considering producing a prototype from real SAR data in a GEOTIFF wrapper. - New Business
None discussed. - Future Meetings
September 13, 2PM UTC - Adjourn
Marc Trachy moved, Dan Pressler seconded
No discussion, passed.
