Vladimir Vassilevsky wrote:> "vorange" <orangepic@yahoo.com> wrote in message > news:3ca36ff1-e6e1-49f0-a407-b9af565297ff@n20g2000hsh.googlegroups.com... >> 3 questions : >> >> 1) Is it possible to build a simple but accurate INS > > No. > >> using a 3 axis >> accelerometer and 3 axis inclinometer? > > No and No. > >> Or do I need something more >> than that? > > You need a lot more then that. > >> 2) Is a gyroscopic chip required to measure the yaw > > Yes and No. > >> Do I need a 3 >> axis gyroscope as well in that case? > > Yes. > >> 3) If I am in a car parked on a hill, how does the INS know I'm not >> accelerating forward but rather that the acceleration is just due to >> gravity? > > You got to account for the gravitation and the rotation of the Earth, as > well as for the tide force from the Moon. > >> Crap I have not even started and its already sounding complicated. > > Crap, Yes. > >> Please, a simple explaination only as I'm already somewhat befuddled. > > As simple as that.Obligatory "The missile knows where it is" lecture... http://tomahawk.ytmnd.com/
Inertial Navigation System - what do I need?
Started by ●December 26, 2007
Reply by ●December 28, 20072007-12-28
Reply by ●December 28, 20072007-12-28
On Fri, 28 Dec 2007 11:27:01 -0800, larwe wrote:> On Dec 28, 2:01 pm, Rich Grise <r...@example.net> wrote: >> On Fri, 28 Dec 2007 09:06:23 -0800, larwe wrote: > >> > Mathematics is no longer taught in the United States. >> >> Depends where you look:http://pbskids.org/cyberchase/basic.html > > Eh? The only vaguely mathematical thing I saw on that page is a talking > calculator, which if anything is arithmetic rather than mathematics.I guess you'd have to see some representative shows. It's kind of like "stealth education" - these kids go on adventures and have to solve problems along the way to get to the goal. So they sit down and figure stuff out, and I suppose the kid (viewer) is supposed to solve it along with them. They ask each other leading questions and stuff. It's probably for pre-schoolers, but my inner child likes it. :-) And they have a variety of problems, from math to physics (the angle of incidence is equal to the angle of reflection), tesselation, and stuff that's within a kid's grasp. Cheers! Roch