<span style=" font-size:12pt;font-family:Arial">Dear Massimo, dear all,</span>
<br><span style=" font-size:12pt;font-family:Arial"> please find below
my comments to the draft TC coding Green Book</span>
<br>
<br><span style=" font-size:12pt;font-family:Arial">Kind Regards</span>
<ul>
<li>
<li>
<li><span style=" font-size:12pt;font-family:Courier New">Green Book's
Sections 2.3, 2.4, 6.1, 6.2, 6.4, 6.5, and 7.2, 7.4.2 should be updated/harmonised
as well. These sections currently have sentences that are applicable to
BCH case only</span>
<li><span style=" font-size:12pt;font-family:Courier New">Table 4-2, 4-3,
I suggest to add a sentence in the text that explains that numbers in the
tables are the exponential values of the protograph parity matrix</span>
<li><span style=" font-size:12pt;font-family:Courier New">Page 7, second
line in the text, it is reported "shown in ," without the reference.</span>
<li><span style=" font-size:12pt;font-family:Courier New">Several times
the book refers to Codeword Error Rate (CER) as Word Error Rate (WER).
This should be possibly harmonised. I spot WER in the following sections:</span>
<ol>
<li value=1><span style=" font-size:12pt;font-family:Courier New">Page
8, in the text</span>
<li value=2><span style=" font-size:12pt;font-family:Courier New">y-Label
of Figure 9-3</span>
<li value=3><span style=" font-size:12pt;font-family:Courier New">y-Label
of Figure 9-8</span>
<li value=4><span style=" font-size:12pt;font-family:Courier New">Page
20, in the text</span></ol>
<li><span style=" font-size:12pt;font-family:Courier New">Page 9, I believe
that text "Reference [2] specifies that PLOP-2 [...]" better
fits in Section 5.5 "SELECTION OF PLOP-1 OR PLOP-2"</span>
<li><span style=" font-size:12pt;font-family:Courier New">Figure 9-2 and
9-3: I believe we should show just results for the TC codes</span>
<li><span style=" font-size:12pt;font-family:Courier New">Page 15, Section
"Horizontal layered BP", in the text it is reported L(r_ji) with
upperscript "I-1". I believe it should read "l-1" </span>
<li><span style=" font-size:12pt;font-family:Courier New">Annex F, Page
26, Example 2, it is suggested to explain that tail sequence is adopted
only for example purposes (since there is no tail sequence for n=512)</span></ul>
<br>
<br>
<br>
<br>
<br>
<br><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b>HE
Space Operations for ESA - European Space Agency</b></span>
<br><span style=" font-size:8pt;color:#00a1e0;font-family:Verdana"><b>Ph.D.
Andrea Modenini</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
Communication Systems & Technologies Engineer</b></span><span style=" font-size:12pt;font-family:Tms Rmn"><b>
</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
TT&C and PDT Systems & Techniques Section (TEC-EST)<br>
RF Systems Division<b><br>
ESTEC</b><br>
Keplerlaan 1, PO Box 299<br>
NL-2200 AG Noordwijk, The Netherlands</span><span style=" font-size:8pt;color:blue;font-family:Verdana"><u><br>
</u></span><span style=" font-size:8pt;color:#808080;font-family:Verdana">andrea.modenini@esa.int
| </span><a href=http://www.esa.int/><span style=" font-size:8pt;color:#8f8f8f;font-family:Verdana"><u>www.esa.int</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
T +31 71 56 53439</span>
<br>
<br>
<br>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">From:
</span><span style=" font-size:9pt;font-family:sans-serif">Massimo.Bertinelli@esa.int</span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">To:
</span><span style=" font-size:9pt;font-family:sans-serif">"Space
Link Coding & Synchronization Working Group" <sls-cc@mailman.ccsds.org></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Date:
</span><span style=" font-size:9pt;font-family:sans-serif">27/01/2020
09:28</span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Subject:
</span><span style=" font-size:9pt;font-family:sans-serif">[SLS-CC]
New draft of CCSDS 230.1-G (TC coding Green Book)</span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Sent
by: </span><span style=" font-size:9pt;font-family:sans-serif">"SLS-CC"
<sls-cc-bounces@mailman.ccsds.org></span>
<br>
<hr noshade>
<br>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Dear colleagues,</span><span style=" font-size:12pt">
<br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
following AI_19_19 (Darmsdtat 2019 meeting), Ken re-worked the draft TC
coding green book, cleaning it up and modifying the order of encoding and
randomisation (for LDPC) as agreed also for the Blue Book (further email
coming soon).</span><span style=" font-size:12pt"> </span><span style=" font-size:10pt;font-family:sans-serif"><br>
This draft will be used for our WG review, with the target of publishing
the new version of the book later this year.</span><span style=" font-size:12pt">
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
Can you please provide your comments by 9 March (5 weeks)?</span><span style=" font-size:12pt">
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
Based on the comments received, I will plan a dedicated session during
our face to face meeting in Huntsville.</span><span style=" font-size:12pt">
<br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
Best regards,</span><span style=" font-size:12pt"> </span><span style=" font-size:10pt;font-family:sans-serif"><br>
Massimo</span><span style=" font-size:12pt"> </span><span style=" font-size:10pt;font-family:sans-serif"><br>
<br>
<br>
---------------------------------------------------<br>
Massimo Bertinelli<br>
Communication Systems Engineer<br>
ESA/Estec<br>
<br>
Tel. +31 (0)71 5653435<br>
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