Recent content by Hemib

Hey, I designed a kalman filter for my project. But how can I determine the correct values for Q and R? Thx!

Thanks for reactions! I now have a formula to calculate the traveled distance between two points. But I want to split this in a lateral and longitudinal distance. So what I have is an right triangle with the calculated distance equals the hypotenuse. What I want are the distances over the...

Hi, How can I calculate the longitudinal and lateral displacement from the longitude and latitude in degrees from a GPS. Thx!

Quick question: If I have an acceleration of the car in the longitudinal direction (for example 6 m/s²), how can I calculate the acceleration in g's? Thx!

Im also a bit confused with the gyro. Is a MEMS gyro also dependent of the mounting position? because otherwise the gyro would give me the right angels, so i can calibrate the accelerometer any idea what sensors would do the job? would this one be good...

Ye, I have access to those sensors. Thx But that doesn't solve the mounting problem :frown:

Its indeed impossible to detect if the change of pitch is due to vehicle acceleration or gravity. But that's not the problem. The problem is that accelerometer axes or not aligned with the 'measured' axes. So how can I get the right pitch angle from a wrong mounted accelerometer.

Ye, then you have the angle with respect to the initial position, right? But what if the car starts on a steep hill?

Hmm.. Ye, was thinking about using GPS for this. Btw, is a gyro also affected by his mounting position? Thx for replies!

It's for calculating pitch angle of a vehicle

How do you do this? Problem is that it's possible that in the initial position the angle I want to calculate is not 0°.

The accelerometer is fixed mounted, but in a random position. It's not possible to turn is 180° There has to be some way to calibrate this.. Maybe with a reference to a GPS signal?

Hi all! I'm working on a system that uses an accelerometer to measure pitch. I know how I can calculate the pitch angle from the accelerometer readings, but I've another problem. At the start I never know how the accelerometer is mounted. So normally on at the start the accelerometer...