DRAFT IS-GPS-705A Comment Resolution Matrix - GPS.gov

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IS-GPS-705 CRMCID Originator/Org. Page/Para Importance Comment PO Resolution & Concurrence NotesPara:this redline version. This draft version needs to be Rationale: Documents are differentiated by date in confirmed that the 'draft' document has aclearly identifiable from other draft version that the filename, however, the date does not appear in latest revision date in the filename.might exist now or the near future. Is: Add the filename when posted on the GPSW website. Forunique draft version number or date.future drafts, will add the draft date to the header asRecommend identifying it as IS-GPS-705 draft IRN- follows:705-004 with a draft version date, but specificidentifier is not important as long as it is unique Concurrence: ConcurFrom: No draft version number or date.Rationale:Final To: Filename: IS-GPS-705_06-sept-09( orequivalent)28 S. BrownLMCOPage: 11Para: 3.3.1.5SRationale: Not having a unique identifier for thisversion can lead to confusion between versionsfor all except the person in control of the latestversion. This appears to be a draft of thedocument including proposed IRN-705-004.Comment:From: Referring to the phase of the I5 carrierwhen I5i(t) equals zero as the "zero phase angle",the I5 and Q5-code generator output shall controlthe respective signal phases in the followingmanner: when I5i(t) equals one, a 180-degreephase reversal of the I5-carrier occurs; whenQ5i(t) equals one, the Q5 carrier advances 90degrees; when the Q5i(t) equals zero, the Q5carrier shall be retarded 90 degrees (such thatwhen Q5i(t) changes state, a 180-degree phasereversal of the Q5 carrier occurs). The resultantnominal composite transmitted signal phases as afunction of the binary state of the modulatingsignals are as shown in Table 3-II.PO Resolution: AcceptRationale: The “was” and “Is” appear to be reversed.06-sept-09: ICC confirms reversal.Concurrence: ConcurRationale:11/19/08: Comment is deferred – will berevisited when documents are placed inDOORS. 20-aug-09: ICC to look atwhether the 705 already has the "shall" inthe paragraph. From the redlined copy, italready has a shall in it. 06-sept-09: ICC hasconfirmed that "shall be retarded 90degrees" is in both the IRN003 version andthe latest redlined version. ICC to confirmwith comment originator that comment isto be withdrawn.Final To: Is: Referring to the phase of the I5 carrierwhen I5i(t) equals zero as the "zero phase angle",the I5 and Q5-code generator output shall controlthe respective signal phases in the following14
IS-GPS-705 CRMCID Originator/Org. Page/Para Importance Comment PO Resolution & Concurrence Notesmanner: when I5i(t) equals one, a 180-degreephase reversal of the I5-carrier occurs; whenQ5i(t) equals one, the Q5 carrier advances 90degrees; when the Q5i(t) equals zero, the Q5carrier will be retarded 90 degrees (such thatwhen Q5i(t) changes state, a 180-degree phasereversal of the Q5 carrier occurs). The resultantnominal composite transmitted signal phases as afunction of the binary state of the modulatingsignals are as shown in Table 3-II.27 S. BrownLMCOPage: 9Para: 3.2.2SRationale: Changed a will to a shall to have arequirement; to facilitate requirementsverification.Comment: Move Code Phase Assignments fromChapter 6 to Chapter 3From: 3.2.2 NAV Data. The L5 CNAV data, D5(t),includes SV ephemerides, system time, SV clockbehavior data, status messages and timeinformation, etc. The 50 bps data is coded in arate 1/2 convolution coder. The resulting 100symbols per second (sps) symbol stream ismodulo-2 added to the I5-code only; the resultantbit-train is used to modulate the L5 in-phase (I)carrier. The content and characteristics of the L5CNAV data, D5(t), are given in Appendix II of thisdocument. In general, the data content is verysimilar to that modulated on the L2 C channel ofthe SV. The L5 quadraphase (Q5) carrier has nodata.PO Resolution: DeferRationale: See CRM comments #11 and #12.Concurrence: ConcurRationale:11/19/08: See disposition of comment #158in IS-GPS-800 CRM: Karl Kovach providedapproach at ICWG and has action toproduce language for IS. 20-aug-09: this isalso in line with comment 45 from the 20CRM. There is an open AI for Karl Kovach.See AI #16 for resolution. 10-sept-09:verified that this AI for PRN expansion is stillopen.Final To:25 Dr. Pam NealSE&IPage:Para: 3.2.1.2SRationale: Move to account for PRN expansionbeyond 32 operational PRNs. Change made inresponse to SDR-80 and SDR-81 action items.Comment: Clarify wording to avoid confusion andmake document consistent with IS-GPS-200.PO Resolution: A/C11/19/08: Changes made in real time duringICWG – replace “NAV” with “navigation” –15
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