[SLS-CC] [Sls-rfm] 130.11-G (SCCC Green Book), for WG review - deadline for comments: 16 June 2018

Fri Jun 15 16:13:43 UTC 2018

Dear Massimo,

Just a couple of comments on the GB

·         p.vii, the spectral efficiency is expressend in bps/Hz.
p.2-3 and 2-4 the spectral efficiency is expressed in bit/symbol.
What is the roll-off factor used to compute the spectral efficiency in bps/Hz? A coherency for the spectral efficiency unit would be better.

·         Chapter 4.3.3 deals with the occupied bandwidth.
A BW is defined for the optimal IBO after filtering with and without predistorison. The computation of the corresponding spectral efficiencies with respect to the ones given in Table 2-1 would be useful for performance estimation (for instance in Tables 6-1 and 6-2).

Best regards

[cid:image001.png at 01D3C144.68C8BFC0]

Clément DUDAL

Radiofrequency and Communication System Engineer

DSO/RF/ITP
18 avenue Edouard Belin 31401 Toulouse Cedex 9

[cid:image002.png at 01D3C144.68C8BFC0] +33 (0)5 61 28 30 70

[cid:image003.png at 01D3C144.68C8BFC0] clement.dudal at cnes.fr<mailto:clement.dudal at cnes.fr>

[cid:image004.png at 01D3C144.68C8BFC0] cnes.fr<https://urldefense.proofpoint.com/v2/url?u=http-3A__cnes.fr_&d=DwMFAw&c=Ff2GokX4A_6S-cy_JRNEiQ&r=nsI9dACK1FmwdtL-UmMWiHLWwD3k0OykltBFCmrMSrI&m=mYu5EuqcpggNniqFAjRAoVH3FnOXAB2fm9Ph05pN3ss&s=GpP1ZMANqlrzHaGImFL9ppf8VQKKh4PYaGndy3D7-sI&e=>

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De : SLS-RFM [mailto:sls-rfm-bounces at mailman.ccsds.org] De la part de Massimo.Bertinelli at esa.int
Envoyé : mercredi 6 juin 2018 15:56
À : Enrico.Vassallo at esa.int
Cc : sls-rfm at mailman.ccsds.org; Ken Andrews <Kenneth.S.Andrews at jpl.nasa.gov>; Space Link Coding & Synchronization Working Group <sls-cc at mailman.ccsds.org>; Jon Hamkins <Jon.Hamkins at jpl.caltech.edu>
Objet : Re: [Sls-rfm] [SLS-CC] 130.11-G (SCCC Green Book), for WG review - deadline for comments: 16 June 2018

Thank you Enrico,

we'll deal with the comments shortly (we are waiting for the deadline to avoid duplications).
I confirm we'll remove all the normative material already in the Blue Book  (your point 4), but possible also the 3))

1) ok
2) ok
3) see above, I'd rather remove normative material
4) ok
5) ok
6) ok for the proposed change. We'll add more detail about the filter (bandpass, stopband...), which is the one that was agreed in the past for simulations
7) it should be feasible
8) they seem ok in the pdf and word file. We used equation editor. We'll hand over the original figures to Tom
9) with RF filtering. We'll add the information

Best regards,
Massimo

---------------------------------------------------
Massimo Bertinelli
Communication Systems Engineer
ESA/Estec

Tel. +31 (0)71 5653435
--------------------------------------------------

From:        Enrico Vassallo/esoc/ESA
To:        Massimo.Bertinelli at esa.int<mailto:Massimo.Bertinelli at esa.int>
Cc:        Ken Andrews <Kenneth.S.Andrews at jpl.nasa.gov<mailto:Kenneth.S.Andrews at jpl.nasa.gov>>, Space Link Coding & Synchronization Working Group <sls-cc at mailman.ccsds.org<mailto:sls-cc at mailman.ccsds.org>>, Jon Hamkins <Jon.Hamkins at jpl.caltech.edu<mailto:Jon.Hamkins at jpl.caltech.edu>>, sls-rfm at mailman.ccsds.org<mailto:sls-rfm at mailman.ccsds.org>
Date:        06-06-18 03:37 PM
Subject:        Re: [SLS-CC] 130.11-G (SCCC Green Book), for WG review - deadline for comments: 16 June 2018
________________________________

Dear Massimo,

please find below some comments of mine.

Regards, Enrico

---------------------------------------------------------------------------

1) Title of sections 3 and 4

I would add "(ideal synchronization)" at the end to distinguish from section 6.

2) Section 1,1, Jon's comment on Earth Observation missions

I think you should use the ITU terminology: Earth Exploration-Satellite Service missions.

3) Figure 2-6

You should use the figures from ref [11] instead that look better and avoid the issues raised by Wai already with the previous version of this document.

4) Table 2-2

I think that this normative text is included in [11]. Please confirm.

5) Figures 3-1 and 3-2

Add "uncoded" to the captions.

6) Section 4.1

The last para starting with "For all simulations .." should appear before the previous sentence making reference to figure 4-3 since these data are necessary to interpret the figure. Is there anything else we can say here about the elliptic filter? I mean, is 5th order enough to get the plot of figure 4-3?

7) Figures 4-19 and 4-20

Reduce the Y-axis scale to 1.5 from 2.6 so that differences can be appreciated.

8) Equations and figures in 5.2, 5.5 and 5.6

Some of them appear of low quality on my printouts. Could be my printer. Be prepared to get nice originals requests by Tom.

9) Tables 6-1 and 6-2

Is the bandwidth with or w/o RF filter? Please add this info.

From:        Jon Hamkins <Jon.Hamkins at jpl.caltech.edu<mailto:Jon.Hamkins at jpl.caltech.edu>>
To:        Massimo.Bertinelli at esa.int<mailto:Massimo.Bertinelli at esa.int>, Space Link Coding & Synchronization Working Group <sls-cc at mailman.ccsds.org<mailto:sls-cc at mailman.ccsds.org>>
Cc:        Enrico.Vassallo at esa.int<mailto:Enrico.Vassallo at esa.int>, Ken Andrews <Kenneth.S.Andrews at jpl.nasa.gov<mailto:Kenneth.S.Andrews at jpl.nasa.gov>>
Date:        05/05/2018 02:05
Subject:        Re: [SLS-CC] 130.11-G (SCCC Green Book), for WG review - deadline for comments: 16 June 2018
________________________________

[attachment "130.11-G-Hamkins-comments.pdf" deleted by Enrico Vassallo/esoc/ESA]

Massimo,

Attached are my comments on the SCCC Green Book.  Not having the Word
version, I found it easiest to mark it by hand.  Most of the comments
relate to English usage, which I hope you will consider, but there are
many technical comments as well.

     ----Jon

On 4/16/2018 7:30 AM, Massimo.Bertinelli at esa.int<mailto:Massimo.Bertinelli at esa.int> wrote:
> Dear all,
>
> as per AI_18_02 from our Gaithersburg meeting, I update the SCCC Green
> Book including (section 7) the measured phase noise, at 26.25 GHz, with
> the modulator (EM) used
> in the testing.
> With this, the book is ready for WG review and your comments are due in
> 2 months, that is by 16 June.
>
> Thank you for your cooperation.
> Best regards,
> Massimo
>
>
>
> ---------------------------------------------------
> Massimo Bertinelli
> Communication Systems Engineer
> ESA/Estec
>
> Tel. +31 (0)71 5653435
> --------------------------------------------------
>
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>
>
>
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This message is sent for information and/or discussion purposes only.

It shall neither be binding nor construed as constituting a commitment for ESA.

It is intended only for the recipient(s) named above.

It may contain proprietary information and/or protected content.

Any unauthorised disclosure, use, retention or dissemination is prohibited.

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ESA applies appropriate organisational measures to protect personal data.

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Thank you.
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