Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.arch.embedded > #30916
| From | Hul Tytus <ht@panix.com> |
|---|---|
| Newsgroups | comp.arch.embedded |
| Subject | Re: navigation math |
| Date | 2021-11-20 20:50 +0000 |
| Organization | PANIX Public Access Internet and UNIX, NYC |
| Message-ID | <snbn3h$42f$2@reader1.panix.com> (permalink) |
| References | <sn91dl$6ul$1@reader1.panix.com> <sn99v1$1gm$1@reader1.panix.com> |
Thanks Grant - that's whats needed. Hul Grant Edwards <invalid@invalid.invalid> wrote: > On 2021-11-19, Hul Tytus <ht@panix.com> wrote: > > Anyone know the method for calculating a reciever's position from the time > > difference between three rf pulse transmiters of known positions? > Yes. If you know the delta between the distances to two known > locations, that places you on a hyperbola whose focii are those two > known points. Plot the hyperbola on your map. > Repat for the other two pairs of points. Hopefully there's one point where all three > intersect. > > This has apparantly been in use since the second world war but a > > description of the mathematics involved is hiding. Maybe a text on > > navagation methods? > https://www.sparknotes.com/math/precalc/conicsections/section4/ > You can do it analytically instead of graphically if you want: > https://www.analyzemath.com/HyperbolaProblems/hyperbola_intersection.html > https://math.stackexchange.com/questions/1920147/intersection-of-two-hyperbolas
Back to comp.arch.embedded | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
navigation math Hul Tytus <ht@panix.com> - 2021-11-19 20:28 +0000
Re: navigation math Dennis <dennis@none.none> - 2021-11-19 16:12 -0600
Re: navigation math Hul Tytus <ht@panix.com> - 2021-11-20 20:45 +0000
Re: navigation math Grant Edwards <invalid@invalid.invalid> - 2021-11-19 22:54 +0000
Re: navigation math Grant Edwards <invalid@invalid.invalid> - 2021-11-19 23:03 +0000
Re: navigation math Don Y <blockedofcourse@foo.invalid> - 2021-11-19 16:28 -0700
Re: navigation math Hul Tytus <ht@panix.com> - 2021-11-20 20:50 +0000
Re: navigation math Don Y <blockedofcourse@foo.invalid> - 2021-11-19 16:19 -0700
Re: navigation math Hul Tytus <ht@panix.com> - 2021-11-20 20:55 +0000
Re: navigation math Don Y <blockedofcourse@foo.invalid> - 2021-11-20 15:38 -0700
Re: navigation math Paul Rubin <no.email@nospam.invalid> - 2021-11-19 18:17 -0800
Re: navigation math Hul Tytus <ht@panix.com> - 2021-11-20 20:59 +0000
Re: navigation math Robert Roland <fake@ddress.no> - 2021-11-20 14:27 +0100
csiph-web