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Degrees of Freedom of Inertial Guidance system

Degrees of Freedom of Inertial Guidance system

Degrees of Freedom of Inertial Guidance system

(OP)
How many degrees of freedom must be sensed
by an inertial guidance system to establish
motion of a rigid body through space ?

RE: Degrees of Freedom of Inertial Guidance system

Wouldn't you need at least 3 linear and 3 angular?

TTFN

RE: Degrees of Freedom of Inertial Guidance system

(OP)
IRstuff
  Your saying 6 degrees, 3 (linear) translational and
3 (Angular) rotational. Is that (3) accelerometers
for (linear) translational and (3) gyros on some sort
of fixed stable mounting (platform) ?
                        Thank you,
                            Wilg

RE: Degrees of Freedom of Inertial Guidance system

That's the general rule, you need the 3 accelerometers to get the 3axes linear of motions and the 3 gyros to get the 3 rotational motions.  

That assumes that you start from a known velocity state, of course, since you depend on integrating the accelerometers to velocities.

TTFN

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