V
vorange
3 questions :
1) Is it possible to build a simple but accurate INS using a 3 axis
accelerometer and 3 axis inclinometer? Or do I need something more
than that? Is the inclinometer even needed or would just an
accelerometer surfice?
2) Is a gyroscopic chip required to measure the yaw or can that be
handled by the accelerometer above? Is it true that accelerometers
cannot measure yaw but can measure pitch and roll only? Do I need a 3
axis gyroscope as well in that case?
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? This gets back to my question of whether an inclinometer is
needed I'm guessing.
Crap I have not even started and its already sounding complicated.
Please, a simple explaination only as I'm already somewhat befuddled.
1) Is it possible to build a simple but accurate INS using a 3 axis
accelerometer and 3 axis inclinometer? Or do I need something more
than that? Is the inclinometer even needed or would just an
accelerometer surfice?
2) Is a gyroscopic chip required to measure the yaw or can that be
handled by the accelerometer above? Is it true that accelerometers
cannot measure yaw but can measure pitch and roll only? Do I need a 3
axis gyroscope as well in that case?
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? This gets back to my question of whether an inclinometer is
needed I'm guessing.
Crap I have not even started and its already sounding complicated.
Please, a simple explaination only as I'm already somewhat befuddled.