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From: Matthew Russotto on 11 Apr 2010 17:28 In article <DtGdnaDxSKdZ2zDWnZ2dnUVZ_qudnZ2d(a)posted.hiwaay2>, T.J. Higgins <ernest.p.worrell(a)vernal.equinox.edu> wrote: > >You're kidding, right? > >Your CP already knows your location. Speed is change of location >over time. Actually, many cell phones do not know your speed or location. AGPS units may offload the computation of location to the network, and then only when requested. Location of TDoA units is always calculated by the network. -- The problem with socialism is there's always someone with less ability and more need.
From: Matthew Russotto on 11 Apr 2010 17:36 In article <9jvtq5pnh9ul6gud0s0ghlp1knjam9fehs(a)4ax.com>, Scott in SoCal <scottenaztlan(a)yahoo.com> wrote: > >The same way a Garmin nav system does: by sampling the position at >regular intervals and doing some simple math. I know this is a losing battle, but that's NOT how a Garmin nav system calculates speed. It calculates speed directly based on the doppler shifts of the satellite signals it receives. -- The problem with socialism is there's always someone with less ability and more need.
From: Matthew Russotto on 13 Apr 2010 22:36 In article <52b5s5dc5c508vjstp40uk0ml6nakinfc3(a)4ax.com>, Scott in SoCal <scottenaztlan(a)yahoo.com> wrote: >Last time on rec.autos.driving, russotto(a)grace.speakeasy.net (Matthew >Russotto) said: > >>In article <9jvtq5pnh9ul6gud0s0ghlp1knjam9fehs(a)4ax.com>, >>Scott in SoCal <scottenaztlan(a)yahoo.com> wrote: >>> >>>The same way a Garmin nav system does: by sampling the position at >>>regular intervals and doing some simple math. >> >>I know this is a losing battle, but that's NOT how a Garmin nav system >>calculates speed. It calculates speed directly based on the doppler >>shifts of the satellite signals it receives. > >And of course you have a citation for this? You have a cite for yours? -- The problem with socialism is there's always someone with less ability and more need.
From: Matthew Russotto on 18 Apr 2010 00:13
In article <vtjas5pdemkjsebeh8nqnasv2sqhm68k9u(a)4ax.com>, Scott in SoCal <scottenaztlan(a)yahoo.com> wrote: >Last time on rec.autos.driving, russotto(a)grace.speakeasy.net (Matthew >Russotto) said: > >>In article <52b5s5dc5c508vjstp40uk0ml6nakinfc3(a)4ax.com>, >>Scott in SoCal <scottenaztlan(a)yahoo.com> wrote: >>>Last time on rec.autos.driving, russotto(a)grace.speakeasy.net (Matthew >>>Russotto) said: >>> >>>>In article <9jvtq5pnh9ul6gud0s0ghlp1knjam9fehs(a)4ax.com>, >>>>Scott in SoCal <scottenaztlan(a)yahoo.com> wrote: >>>>> >>>>>The same way a Garmin nav system does: by sampling the position at >>>>>regular intervals and doing some simple math. >>>> >>>>I know this is a losing battle, but that's NOT how a Garmin nav system >>>>calculates speed. It calculates speed directly based on the doppler >>>>shifts of the satellite signals it receives. >>> >>>And of course you have a citation for this? >> >>You have a cite for yours? > >I'll take that as a "no." Likewise. -- The problem with socialism is there's always someone with less ability and more need. |