Robot_localization output is not stable
Hi . I am using robotlocalization to merge my data of odometry and a sensor. Now i have modified the output of sensor in navmsg/Oodmtery format with covariance matrix whose values i set to 0.3 and sensor's output is x and y position. now when i use this data and see the output of robot_localization filtered/odometry, the robot keeps jiggling around. Even if it is not moving. My data is updated by rate of 0.25s and at each instance there is a new reading even if the robot is stable. e.g the output in x direction is 1.22535 1.21255 1.19225 1.22111
But i expect the output of filter to be stable at least when the robot is stable. process noise covariance matrix and initial state matrix are also 0.3 and 0.4 respectively. Anyone can explain why is this happening and how could i remove this? And how will the covariance matrix from robot's odometry message behave in this regard? Do i have to modify the Odometry message with custom covariance matrix or it's default value 0,0,0.... is enough ?
Asked by Ahmed1212 on 2019-10-10 14:01:59 UTC
Comments
Please provide:
Asked by Tom Moore on 2020-01-02 05:07:52 UTC
I suspect this is related to what I told you here:
https://answers.ros.org/question/334901/covariance-matrix-for-custom-odomtery-messages/
But I can't say for certain until you post your config.
Asked by Tom Moore on 2020-01-06 04:56:01 UTC