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Groups > sci.physics.relativity > #422428

Re: GPS Again.

From Serg io <invalid@invalid.com>
Newsgroups sci.physics.relativity, sci.physics
Subject Re: GPS Again.
Date 2017-06-12 18:45 -0500
Organization Aioe.org NNTP Server
Message-ID <ohn920$1uj$1@gioia.aioe.org> (permalink)
References (12 earlier) <3Zedna9x8vdkNqPEnZ2dnUU7_83NnZ2d@giganews.com> <ohmcf5$jvu$1@gioia.aioe.org> <85v21e-ltc.ln1@mail.specsol.com> <ohmjn0$10mj$1@gioia.aioe.org> <593f14d2$0$54429$b1db1813$e2fc9064@news.astraweb.com>

Cross-posted to 2 groups.

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On 6/12/2017 5:25 PM, benj wrote:
> On 6/12/2017 1:40 PM, Selina Dieter wrote:
>> jimp wrote:
>>
>>>> GPS is classic SS, was develped in the early 70s,
>>>
>>> Spread spectrum was actually developed in the 40's.
>>
>> Rather purposed, as an idea. You don't know. You don't know what it is.
>> Explain the clocking of data in such an arrangement. You don't know. I 
>> was
>> right all the time.
>>
> Chimp is an idiot and Selina has him backed into a corner since Selina 
> knows that clock extraction from BPSK modulation is not such a simple task!

BenjJi! you are right again, not simple at all!  many tradeoff's there, 
bit sync, code sync, tracking loop bandwidths, SNR etc.

now that most of it is settled for GPS, and there are chipsets out 
there, I would love to see how they did all the sync up.

take code sync, you have 12 sattilites sending SS to you with different 
codes, and you have to corrolate with each of them,  would you put 12 in 
yoru design, like Motorola would do? (they not a SS house)


http://www.navipedia.net/index.php/Correlators

Pseudo-Random Noise (PRN) Codes - also called ranging codes - are a 
sequence of pulses that are used  to spread the spectrum of the 
transmitted signal. For this purpose, several types of codes are used, 
and some examples are given here (for further information on the codes 
used by each system, refer to the respective SIS ICDs):

     GPS L1 C/A uses Gold codes[1] that are actually a combination of 
two maximum length codes[2].

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Thread

GPS Again. "HGW, DSc." <HG@....> - 2017-05-27 06:49 +1000
  Re: GPS Again. Ckeho Baùkora <unukn@owyqar.og> - 2017-05-26 21:01 +0000
    Re: GPS Again. "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-05-26 15:49 -0700
      Re: GPS Again. Ckeho Baùkora <unukn@owyqar.og> - 2017-05-27 09:20 +0000
  Re: GPS Again. dancouriann@gmail.com - 2017-05-26 15:50 -0700
  Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-05-26 17:58 -0500
  GPS Again. "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-05-26 16:14 -0700
    GPS Again. "David (Lord Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2017-05-26 16:38 -0700
  Re: GPS Again. xxein1x1@gmail.com - 2017-05-26 16:25 -0700
  Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-05-27 00:18 +0000
  Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-05-26 19:51 -0500
    Re: GPS Again. Ckeho Baùkora <unukn@owyqar.og> - 2017-05-27 10:37 +0000
      Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-05-30 09:57 -0500
        Re: GPS Again. Helmut Wabnig <hwabnig@.- --- -.dotat> - 2017-05-30 20:52 +0200
          Re: GPS Again. Ernest Rivers <erwm@weicnne.ac> - 2017-05-30 19:17 +0000
          Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-05-30 15:23 -0500
            Re: GPS Again. Helmut Wabnig <hwabnig@.- --- -.dotat> - 2017-05-30 22:53 +0200
              Re: GPS Again. Ernest Schwanenflügel <erwm@wanenf.oa> - 2017-05-30 20:59 +0000
                Re: GPS Again. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-05-31 00:42 +0200
              Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-05-30 19:03 -0500
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-05-30 21:30 -0500
          Re: GPS Again. Serg io <invalid@invalid.com> - 2017-05-30 19:01 -0500
        Re: GPS Again. Ernest Rivers <erwm@weicnne.ac> - 2017-05-30 19:15 +0000
          Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-09 11:37 +1000
            Re: GPS Again. Jim Limey <eeug@dnne.ri> - 2017-06-09 14:32 +0000
              Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-09 12:51 -0500
                Re: GPS Again. Kitubu Nkyaku <akntuu@buwkau.kk> - 2017-06-09 18:52 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-10 09:23 +1000
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-10 11:23 +1000
              Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-10 11:21 +1000
                Re: GPS Again. Kitubu Nkyaku <akntuu@buwkau.kk> - 2017-06-10 10:42 +0000
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-10 19:38 -0500
                Re: GPS Again. Nými Icelulózy <ejienm@wzsfwe.ul> - 2017-06-16 11:30 +0000
                Re: GPS Again. Sегgi о <iinvalid@invalid.com> - 2017-06-16 10:40 -0500
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-11 11:11 +1000
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-10 21:20 -0500
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-11 12:31 +1000
                Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-06-10 22:40 -0500
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-10 23:20 -0500
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-11 05:14 +1000
                Re: GPS Again. "Paul B. Andersen" <relativity@paulba.no> - 2017-06-10 22:16 +0200
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-11 07:19 +1000
                Re: GPS Again. xxein1x1@gmail.com - 2017-06-10 16:11 -0700
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-10 18:32 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-11 14:43 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-13 07:50 -0700
                Re: GPS Again. Lolek Atoru <oitiruc@rwuca.oa> - 2017-06-13 20:56 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-14 09:25 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-13 17:02 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-14 12:36 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-13 20:04 -0700
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-14 04:43 +0000
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-14 20:11 +1000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-14 14:47 +0000
                Re: GPS Again. "Paul B. Andersen" <relativity@paulba.no> - 2017-06-11 22:35 +0200
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-11 15:44 -0500
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-11 18:03 -0500
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-11 19:00 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-12 11:39 +1000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-12 02:33 +0000
                Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-06-11 22:42 -0500
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-11 23:27 -0500
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 04:47 +0000
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-12 08:20 -0500
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 17:18 +0000
                Re: GPS Again. Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2017-06-15 10:06 -0700
                Re: GPS Again. Kotovanich Nzerovu <ivhvruo@wovewvw.ev> - 2017-06-15 17:30 +0000
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-12 18:15 -0400
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 22:32 +0000
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-12 20:48 -0400
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-13 01:52 +0000
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-13 19:57 -0400
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-14 00:46 +0000
                Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-06-12 09:58 -0500
                Re: GPS Again. Selina Dieter <uiueeits@wlwtwstd.ci> - 2017-06-12 15:08 +0000
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-12 10:37 -0500
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 17:21 +0000
                Re: GPS Again. Selina Dieter <uiueeits@wlwtwstd.ci> - 2017-06-12 17:40 +0000
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 18:05 +0000
                Re: GPS Again. Selina Dieter <uiueeits@wlwtwstd.ci> - 2017-06-12 18:19 +0000
                Re: GPS Again. jimp@specsol.spam.sux.com - 2017-06-12 19:16 +0000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-12 19:43 +0000
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-12 18:25 -0400
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-12 18:45 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-12 10:35 +1000
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-12 11:05 +1000
                Re: GPS Again. Serg io <invalid@invalid.com> - 2017-06-11 23:29 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-12 20:12 +1000
                Re: GPS Again. Poutnik <poutnik4nntp@gmail.com> - 2017-06-12 13:54 +0200
                Re: GPS Again. Selina Dieter <uiueeits@wlwtwstd.ci> - 2017-06-12 12:47 +0000
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-13 04:13 +1000
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-13 12:59 +1000
                Re: GPS Again. mlwozniak@wp.pl - 2017-06-12 23:03 -0700
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-13 04:22 +1000
                Re: GPS Again. Sylvia Else <sylvia@not.at.this.address> - 2017-06-13 13:00 +1000
                Re: GPS Again. Tom Roberts <tjroberts137@sbcglobal.net> - 2017-06-13 13:32 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-14 10:09 +1000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-14 09:34 +1000
                Re: GPS Again. Серг ио <invalid@invalid.com> - 2017-06-13 18:42 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-14 12:40 +1000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-14 04:06 +0000
                Re: GPS Again. mlwozniak@wp.pl - 2017-06-14 01:20 -0700
                Re: GPS Again. Sегg iо <invalid@invalid.com> - 2017-06-13 23:19 -0500
                Re: GPS Again. Sегg iо <invalid@invalid.com> - 2017-06-13 23:46 -0500
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-14 20:07 +1000
                Re: GPS Again. Sегg iо <invalid@invalid.com> - 2017-06-14 09:17 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-17 08:26 +1000
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-16 20:40 -0400
                Re: GPS Again. Ecembre Abin <umueuu@eibbwaw.ee> - 2017-06-17 08:05 +0000
                Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-17 22:20 +1000
                Re: GPS Again. Sегgi о <iinvalid@invalid.com> - 2017-06-17 07:58 -0500
                Re: GPS Again. benj <benj@nobody.net> - 2017-06-14 17:06 -0400
        Re: GPS Again. "HGW..." <hgw@....> - 2017-05-31 09:58 +1000
  Re: GPS Again. "Paul B. Andersen" <relativity@paulba.no> - 2017-05-27 07:36 +0200
    Re: GPS Again. "HGW... DSc." <hgw@....> - 2017-05-28 10:57 +1000
  Re: GPS Again. Rafael Valls Hidalgo-Gato <rvalls162@gmail.com> - 2017-05-31 07:02 -0700
    Re: GPS Again. "HGW..." <hgw@....> - 2017-06-01 09:00 +1000
      Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-05-31 23:42 +0000
        Re: GPS Again. "HGW..." <hgw@....> - 2017-06-01 19:36 +1000
          Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-01 05:33 -0700
            Re: GPS Again. "HGW, DSc." <HG@....> - 2017-06-02 19:51 +1000
              Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-03 05:10 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-04 08:08 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-03 15:27 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-04 08:50 +1000
                Re: GPS Again. pnalsing@gmail.com - 2017-06-03 19:37 -0700
                Re: GPS Again. Poutnik <poutnik4nntp@gmail.com> - 2017-06-04 07:09 +0200
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-04 16:06 +1000
                Re: GPS Again. Prudence Youngs <usue@weuem.ge> - 2017-06-04 11:11 +0000
                Re: GPS Again. Poutnik <poutnik4nntp@gmail.com> - 2017-06-04 14:23 +0200
                Re: GPS Again. Prudence Youngs <usue@weuem.ge> - 2017-06-04 12:33 +0000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-04 18:17 +0000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-04 05:06 -0700
                Re: GPS Again. Prudence Youngs <usue@weuem.ge> - 2017-06-04 12:12 +0000
                Re: GPS Again. anne <0140519@gmail.com> - 2017-06-04 05:32 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-05 08:48 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-04 16:09 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-05 11:12 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-04 19:24 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-05 16:38 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-05 04:49 -0700
                Re: GPS Again. mlwozniak@wp.pl - 2017-06-05 05:53 -0700
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-06 08:38 +1000
                Re: GPS Again. Gary Harnagel <hitlong@yahoo.com> - 2017-06-05 20:30 -0700
                Re: GPS Again. Poutnik <poutnik4nntp@gmail.com> - 2017-06-04 15:00 +0200
                Re: GPS Again. Prudence Youngs <usue@weuem.ge> - 2017-06-04 11:10 +0000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-04 13:25 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-05 08:46 +1000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-04 23:13 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-05 11:16 +1000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-05 09:26 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-06 08:46 +1000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-05 23:17 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-07 10:11 +1000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-07 03:04 +0000
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-07 14:58 +1000
                Re: GPS Again. Odd Bodkin <bodkinodd@gmail.com> - 2017-06-07 12:17 -0500
                Re: GPS Again. "HGW..." <hgw@....> - 2017-06-08 09:06 +1000
                Re: GPS Again. moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-06-05 00:49 +0000

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