2025-01-16 06:55 AM
Hello,
Our teams is making a proof of concept about dead reckoning using a STM WESU board.
The goal is to get pedestrian position onyl using ACC/GYR/MAG for a short period of time and small moves.
First results in certains conditions are pretty good. Without any calibration/correction, we manage to get approx 3m absolute error on a 20m walk (30seconds). We expect same error on a 100m walk with good AHRS algorithm parameters and sensor calibration.
We are ready to put more effort on the IMU.
Do you have calibration source code/protocol for WESU sensor ?
* LSM6DS3 = acc value + gyro drift
* LIS3MDL = soft and hard iron calibration
We also have other more advanced IMU, but we want to keep it simple and low cost for now and WESU allow us to be pretty fast on POC steps.
Thanks a lot for your future help.
Best regards.