Comments (8)
Approach is definitely correct.
But need more info about your setup and filter settings.
from mad-location-manager.
I use only the kalman filter implementation from this repo. So basicaly i initialized filter with first point data, then I predict with acceleration, and update with gps data.
No additional settings.
Maybe the problem is, I use wrong standard deviation for acceleration and position.
Or the accelerometer is not calibrated?
from mad-location-manager.
Maybe you use uncalibrated accelerometer.
There are 2 variants of using filter here :
Use speed readings from GPS receiver or not use.
Also this sensor bosch bno055 - did you calibrate it? I mean it uses magnetometer and when you use magnetometer you should compensate soft and hard iron distortions there .
from mad-location-manager.
That's why I asked about your setup :)
from mad-location-manager.
I'm using variant with speed from GPS. The magnetometer is calibrated according to my mechanical compass.
Maybe frequency is the issue? It's only 5hz.
from mad-location-manager.
No, it should not be an issue.
from mad-location-manager.
So here is what i found, looking at the path.
On the image above we can clearly see that the path is not correct, it should by along a street.
And when the filter is updated with correct gps data, it's ignored and getting even worse.
So the filter is not filtering at all. Prediction works, but updating not.
Any ideas ? :D
from mad-location-manager.
Sensor is bosch bno055 it has a drawback, it cannot accurately maintain orientation during prolonged accelerations and vibrations, these are problems of its fusion algorithm, it may be worth trying a more reliable sensor.
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Related Issues (20)
- for gps accuracy
- Sensor calibration needed ? HOT 3
- gpsacckalmanfilter tutorial video ? HOT 1
- Demo App crashes with GPS Provider
- URGENT HELP HOT 5
- crash with deprecated api GPSStatus in "onStop()" method GPSLocationProvider file
- Maven Plugin doesn't work with Gradle 7.2 on Android Studio
- Doesn't work with Gradle 7.1.3
- Demo app crash
- Android location manager does not handle sensors ? HOT 1
- Фильтр Калмана не работает ожидаемым образом HOT 3
- questions on some logic used in code HOT 1
- Need help for starting demo app HOT 2
- Old device without sensors TYPE_ROTATION_VECTOR, TYPE_LINEAR_ACCELERATION HOT 4
- GPSAccKalmanFilter HOT 2
- Trouble updating mapbox sdk version HOT 1
- Kalman location service started location random coords HOT 2
- The Kalman filter doesn't work when I walk backwards
- GPS errors/jumps
- It can be used for count step?
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