[Sls-slp] Fwd: Re: [Sls-rfm] Re: [CESG] URGENT: review of Prox-1 pink sheets
Greg Kazz
greg.j.kazz at jpl.nasa.gov
Mon Mar 14 19:18:46 UTC 2005
All,
Comments from Don Olsen (Aerospace Corp.) on the Prox-1 Data Rate Stability
requirements pink sheet I sent out earlier.
Greg
>Date: Fri, 11 Mar 2005 22:58:51 +0100
>From: Enrico.Vassallo at esa.int
>Subject: Re: [Sls-rfm] Re: [CESG] URGENT: review of Prox-1 pink sheets
>To: Donald P Olsen <Donald.P.Olsen at aero.org>
>Cc: Greg J Kazz <Greg.J.Kazz at jpl.nasa.gov>, Jean-Luc.Gerner at esa.int,
> sls-rfm at mailman.ccsds.org
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> 8, 2004) at 03/11/2005 10:58:52 PM
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>
>
>Donald,
>
>I would tend to agree with you. CCSDS standards should be leading standards
>for future implementation. Here it seems to me that we are trying to
>standardize an existing equipment with its own imperfections and design
>problems.
>I have copied Jean-Luc in his function of ESA representative when Prox-1 was
>developed and not as SLS area director. I am sure that he would also support
>my and your views.
>
>It looks like we will have an interesting discussion in Athens. Given that
>not too many people are registered so far for the RFM/RNG meeting, we may be
>able to replan the meetings and devote more time to this issue.
>
>Best Regards, Enrico
>
>
>
>
>
>
> Donald P
> Olsen
>
> <Donald.P.Olsen at aero.o To:
> Enrico.Vassallo at esa.int
> rg> cc: Greg J Kazz
> <Greg.J.Kazz at jpl.nasa.gov>, Gian.Paolo.Calzolari at esa.int,
> Sent
> by: Jean-Luc.Gerner at esa.int,
> sls-rfm at mailman.ccsds.org, sls-rfm-bounces at mailman.ccsds.org
> sls-rfm-bounces at mailma Subject: Re:
> [Sls-rfm] Re: [CESG] URGENT: review of Prox-1 pink sheets
> n.ccsds.org
>
>
>
>
>
> 10/03/2005
> 21:22
>
>
>
>
>
>
>
>
>
>Greetings to all:
>
>It seem like +/- 10 % is an awful lot!!!! It would therefore seem reasonable
>to do a spectrum analysis and see if there are any spectrum problems with
>transmission of such a wobbling signal, particularly if due to the small
>number of samples per symbol,
>the wobble had a periodic component and hence would generate a descret
>modulation spur or if the wobble would create a significant degradation in
>Eb/No.
> I recommend that rather than totally sacrificing the precision of the
>existing recommendation, that we chose an amount that is sufficiently small
>to limit the spurs to an appropriate spectral mask and let electral request a
>waver since their
>hardware is cast in concrete.
>
>Don Olsen
>
>
>
>
> Enrico.Vassallo at esa.int
>
> Sent by: sls-rfm-bounces at mailman.ccsds.org
>
>To
>sls-rfm at mailman.ccsds.org
>
> 02/17/2005 01:00 AM
>cc
>Greg J Kazz <Greg.J.Kazz at jpl.nasa.gov>, Gian.Paolo.Calzolari at esa.int,
>Jean-Luc.Gerner at esa.int
>Subject
>[Sls-rfm] Re: [CESG] URGENT: review of Prox-1 pink sheets
>
>
>
>
>
>
>
>
>
>
>
>Dear RF and Modulation experts,
>
>could you take a look at the attached pink sheets and send any comments/RIDs
>to our WG with copy to Gregg by March 17? The goal would be to try and
>resolve any issues before the meeting takes place!
>
>As you can imagine, we are very pressed for time at the Athens meeting.
>
>Thanks in advance for your cooperation, Enrico
>----- Forwarded by Enrico Vassallo/esoc/ESA on 17/02/2005 09:56 -----
>|---------+--------------------------->
>| | Greg Kazz |
>| | <greg.j.kazz at jpl|
>| | .nasa.gov> |
>| | |
>| | 16/02/2005 18:19|
>| | |
>|---------+--------------------------->
>
> >-------------------------------------------------------------------------
> ------------------------------------------------------|
>
> |
>|
> | To: Enrico.Vassallo at esa.int
>|
> | cc: Gian.Paolo.Calzolari at esa.int, Jean-Luc.Gerner at esa.int
>|
> | Subject: Re: [CESG] URGENT: your need for meeting rooms, Spring
>2004 |
>
> >-------------------------------------------------------------------------
> ------------------------------------------------------|
>
>
>
>
>
>Hi Enrico,
>
>I've attached the pink sheets to the Prox-1 Physical layer which was
>approved for agency review (they went out to the CCSDS secretariat for
>posting on the web site as well last week).
>
>If everyone in the joint WGs (RFM and SLS-SLP) has a chance before the
>Spring meetings to take a good look at these pink sheets, and we review any
>comments by email before the meeting, then I think we should be able to
>resolve the issue in the one hour time frame you are suggesting. Tenatively
>Wed. April 13 from 11 - 12
>
> I recommend that you email these pink sheets to your WG and ask them to
>comment so that we can stream line the process ahead of the Spring meetings
>and cc: Greg Kazz to their messages as well so that I can track the progress.
>
>Note that the paragraph in RED italics was added as a result of the Prox-1
>Build-2 WG meeting held in Toulouse in November 2004 and will most likely
>be the point of any controversy.
>
>Thanks.
>
>best regards,
>
>Greg
>
>At 12:35 AM 2/16/2005, Enrico.Vassallo at esa.int wrote:
>
> >Greg,
> >
> >I had planned to held the RFM meeting on April 12-13 and the RNG meeting on
> >April 14. The SLS plenary meeting will be held on April 15.
> >
> >There is a need for a joint RFM/CC meeting that is tentatively expected to
> >require a full afternoon. Gian Paolo and myself agreed to hold it on April
> >13.
> >
> >For the data rate stability issue, I believe that one hour should suffice.
> >Given the packed schedule for such April meetings, I would be inclined to
> >propose that we squeeze such one-hour meeting before the joint RFM/CC on
> >April 13 afternoon.
> >
> >Would such preliminary planning be commensurate with your needs?
> >
> >Depending on the input papers we plan to receive (as customary I will call
> >for papers to be delivered one week prior to meeting start - papers coming
> >later will go to the next meeting), we could re-assess the situation and
> >possibly do a little adjustment to the schedule with one week's notice.
> >
> >Please let us have your views on this, Enrico
> >
> >
> >
> >
> >|---------+--------------------------->
> >| | Greg Kazz |
> >| | <greg.j.kazz at jpl|
> >| | .nasa.gov> |
> >| | |
> >| | 08/02/2005 18:57|
> >| | |
> >|---------+--------------------------->
> >
> >
> >-------------------------------------------------------------------------
> ------------------------------------------------------|
>
>
> > |
> > |
> > | To: Jean-Luc.Gerner at esa.int
> > |
> > | cc: Enrico.Vassallo at esa.int,
> > Gian.Paolo.Calzolari at esa.int
> > |
> > | Subject: Re: [CESG] URGENT: your need for meeting rooms,
> > Spring 2004 |
> >
> >
> >-------------------------------------------------------------------------
> ------------------------------------------------------|
>
>
> >
> >
> >
> >
> >Jean-Luc,
> >
> >My appologies for not responding to you sooner.
> >
> >I foresee the following meetings for these WGs:
> >
> >1) One full day for SLS-SLP
> >
> >2) Two hour joint meeting with RF&MOD to resolve the data rate stability
> >requirements within the Prox-1 Physical layer document. - We have not yet
> >had the opportunity to address this issue face to face with RF&MOD. This
> >falls under the Prox-1 Build-2 WG tasks, and is the only action remaining
> >for that WG.
> >
> >Jean-Luc: Where pink sheets ever delivered to you by the CCSDS secretariat
> >regarding the change pages proposed in Toulouse regarding the Prox-1
> >Physical layer?
> >
> >3) 1/2 day for SLS Link Layer WG to review the final Prox-1 GB
> >
> >I don't foresee a joint CC & SLS-SLP WG meeting at this time.
> >
> >best regards,
> >
> >Greg
>(See attached file: prox1_datarate_rqmts_pinksheets.doc)
>
>(See attached file:
>prox1_datarate_rqmts_pinksheets.doc)_______________________________________________
>
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