False positives with laser scan [closed]

asked 2021-12-14 17:11:48 -0500

Hi, I'm trying to work on an obstacle avoidance algorithm using Husky gazebo where I try to reach the desired goal. The algorithm seems to work well but the issue is that the laser scan range data (the data at /scan topic) sometimes outputs really low values even when there's no object in sight or the object is far. An example screenshot is here. The laser scan output for that state is here. I initially thought that I could simply ignore those values if there were less than, say, 20 of them. But as you can see, the laser scan data for the "front" region seems to have 60 values (which is not insignificant) around 0.17 even though the closest object is much farther than that. I'm really not sure why this is happening because the other range values seem to be accurate. If anyone has any ideas, that would be really helpful!

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Closed for the following reason Gazebo Question: The Gazebo community prefers to answer questions at: http://answers.gazebosim.org by suohmikoto1234
close date 2021-12-14 17:18:37.233766