Recent content by wa5211

Ok, il have a look at Kalman filters, thanks for your help

File has been updated to a working version. Sorry for the problem

I have been toying with this all day. I have some sample data which i collected on a run in the car. The data is accelerometer values from the 3 axis of acceleration for a car journey in a straight line. The car accelerates from a standing start to 60 MPH and then decellerated back to a...

Thats great, i have been playing around with that equation recently but will have another go tomorrow to see what i can get out of it. I have sample data that i know acceleratesd to 60MPH so i will see if i can get some data relatively near that value Thanks for you help so far!

That sounds good but how do i get from 3 accelerations in the three different axis, to one acceleration?

Initially a car traveling in a straight line which accelerates from a motionless position to a set speed, and then decelerates back to 0 again.

I am in need of a little guidance. I am trying to calculate the speed of travel using an ADXL330 accelerometer, with values in the X Y and Z directions. I know this isn't a particularly accurate way of calculating the speed of travel but its this is the only component i have at my disposal...

Thanks DH I had another play today, I am programming in c and its pretty long winded due to math limitations of using integers/floating point values. My program is too sensitive, it seems to 'think' its moving even when it isnt. I have gone back to using one axis, atleast until i get a...

I understand that the distance will be increase more rapidly for hills etc but I am not too worried by this. If i know how fast I am traveling and for how long, i can use the heading generated from the compass to work out when i change direction. Then i can keep a culmulative total for how far...

I have joined this forum in need of some help. I am poor at physics but not too bad at math. I am making a device to place in a car to act as a dead reckoning navigation system using a digital compass and a 3 axis accelerometer. I tried measuring the speed of the car using one plane (axis)...