[SLS-CC] C&S Fall meeting 2021 - discussion on VLF and AOS FHEC

[Andrea.Modenini at esa.int]

Dear Greg and Matt,
 by means of this email I would to bring your attention on two main agenda 
items that were discussed during C&S Fall meeting 2021 (MoM can be found 
in attachment).

AOS FHEC: the recommendation of the C&S WG is to keep the FHEC (since it 
will be adopted by future missions), but to propose to your WG a possible 
update of the Blue Book (for avoiding ambiguity on the Virtual Fill to be 
done on the shortened Reed Solomon). In light of this, we have an AI to 
provide a draft of the changes that you should consider for 
implementationg.
Additionally, we are planning to check with Data handling manufacturer 
what kind of virtual fill was implemented so far, for possibly avoiding to 
create a non-compliance to existing units.

VLF: we started the discussion on the topic (see MoM Section 2.5.2), in 
particular for implementing a slicer for enabling VLF. 
For next Spring meeting, we plan to draft a concept paper for having a 
dedicated project, and would like to have a joint meeting with your WG for 
discussing possible technical solutions (in particular the frame 
synchronisation). 
It could be worth to invite also the Optical WG, since I understand they 
have a similar discussion on-going (for this, I put in CC Bernard)


Kind Regards


ESA - European Space Agency
Ph.D. Andrea Modenini
TT&C Communications Systems Engineer 
TT&C and PDT Systems & Techniques Section (TEC-EST)
RF Systems Division
ESTEC
Keplerlaan 1, PO Box 299
NL-2200 AG Noordwijk, The Netherlands
andrea.modenini at esa.int | www.esa.int
T +31 71 56 53439, M +31 6 484 56 527

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