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swri-robotics / gps_umd

BSD 3-Clause "New" or "Revised" License
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GPS Params #64

Closed ussefdesouky closed 1 year ago

ussefdesouky commented 2 years ago

What are the GPS parameters that affect the odometry values? odometry msg values: x:492873.313 y:5527538.68483

I am using the hector_gazebo gps plugin in the simulation environment. How can I get the gps odometry values close to the wheel odometry values?

Thanks in advance.

danthony06 commented 2 years ago

I'm not sure I can easily answer that. In general, you'll need some kind of transform that relates your odometry frame to a map frame. Your SLAM algorithm and the performance of the wheel encoders will determine how accurate this transform is. The GPS will probably be directly provided in the map frame, and then you can compare your odometry estimate to the GPS position measurement.

danthony06 commented 1 year ago

Closing because of staleness.