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Anchoring Slam generated map to UTM coordinates

I generated a map of my world using SLAM and now I want to use GPS to localize in that particular map. I am finding it confusing on how to anchor this slam map to the UTM coordinates? As far as I've ...
zain's user avatar
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1 vote
1 answer
148 views

How to Fuse GPS as Odometry Source in robot_localization for Precise Localization Without Reliable IMU or Wheel Odometry?

I’m using ROS2 Iron and the robot_localization package for sensor fusion. My system has a highly accurate GPS as the primary source for position, but I’m facing issues due to: **1- Lack of reliable ...
Marcus Vinicius's user avatar
2 votes
3 answers
242 views

GPS and Navsat Transform Node Issues with Magnetic Declination and Yaw Offset in São Paulo, Brazil (Real Robot)

I am working on an autonomous vehicle project in São Paulo, Brazil. As part of the project, I am using the navsat_transform_node from the ROS robot_localization package for integrating GPS data. I ...
Marcus Vinicius's user avatar
0 votes
0 answers
20 views

GPS robot heading: calibrated magnetometer causes erratic results

I am currently trying to navigate using an RTK GPS. Unfortunately, despite calibration, my magnetometer's heading estimate seems to be slightly off at certain angles. While moving at these angles, ...
Shmuel Silver's user avatar
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0 answers
69 views

Robot_localization - GPS heading problem

I hope someone can help me I'm using robot_localization to improve my location estimation using the following ekf nodes ekf_node_odom: odometry + IMU ekf_node_map: odometry + IMU + GPS the first ...
Supermax182's user avatar
0 votes
1 answer
247 views

Erratic Robot Movement in RViz2 with Nav2: Back and Forth Motion and Small Jumps

I'm encountering a peculiar issue with robot movement in RViz2 using Nav2, where the robot exhibits erratic back-and-forth movements accompanied by small jumps during the simulation. This behavior is ...
Marcus Vinicius's user avatar
0 votes
1 answer
28 views

Declination usage in navsat_transform

I am running the navsat_transform node using a set datum point to get (x,y) coordinates in the map frame. I am inputting the same GPS lat/long values, just changing the declination. Using 0.0 for the ...
user avatar
0 votes
1 answer
8 views

GPS antenna not in the center

Hi. To put it simply, I want robot_localization's / odometry / gps to start at (x, y, z) = (0, 0.3, 0) instead of (0, 0, 0). I'm trying to get the robot to estimate its position. It worked generally ...
user avatar
0 votes
1 answer
34 views

navsat_transform_node to find pose coordinates for a given GPS lat/long

I'm working on a robotic convoy setup entirely in simulation, and want to do the following: Vehicle 1 - Send its GPS coordinates to follower vehicle (called Vehicle 2) Vehicle 2- Take the GPS ...
user avatar
0 votes
1 answer
34 views

Unexpected output of robot_localization EKF

UPDATE I have changed the yaw_offset to 0 instead of 3.14. This has caused /odometry/filtered and odometry/gps to give much better results. Setup I have a TurtleBot3 robot with a GPS receiver. I am ...
user avatar
0 votes
1 answer
96 views

robot_localization navsat transform node does not publish

Hello, Goal: Write simplest robot_localization program using Android phone sensors (GPS and IMU). To be more exact first I need navsat_transform_node to output something. Problem: /odometry/filtered, /...
user avatar
0 votes
1 answer
40 views

navsat_transform_node without IMU

I'm trying to fuse GPS data and IMU data using robot_localization. I have the IMU data going into the filter nicely, now I'm trying to configure GPS. The problem is that my robot has a large inverter ...
user avatar
0 votes
1 answer
14 views

robot_localization with GPS map frame won't stay fixed

Hey guys, I'm running a dual ekf setup of robot_localization to fuse GPS alongside navsat_transform_node which provideds the map-...
user avatar
0 votes
1 answer
9 views

aligning map to map_frame origin

Hi I am using two ekf_localization_nodes and one navsat_transform_node from ...
user avatar
0 votes
1 answer
13 views

[robot_localization] Non zero altitude in /gps/filtered when ~zero_altitude & ~two_d_mode are true

I am trying to use robot_localization to fuse data from a 9DOF IMU & a GPS, via one instance of ukf_localization_node & an instance of navsat_transform_node. I think my setup is more or less ...
user avatar
0 votes
1 answer
31 views

Can navsat_transform be used to transform a pose from latlong to odom?

I'm using a gps to localize a mobile robot and ekf_localization_node together with a navsat_transform_node to transform the ...
user avatar
0 votes
1 answer
11 views

navsat_transform_node: Tf has two or more unconnected trees

Hi, I'm new in ROS I use robot_localisation Package for Fusing imu, gps, odometry but i have problem with navsat_transform_node when i launch the launch file i receive this warning: [ WARN] [...
user avatar
0 votes
1 answer
47 views

GPS waypoint navigation with Jackal

I have a the UGV "Jackal" from Clearpath Robotics. My Task is to let the robot follow a predetermined path (given in UTM -Coordinates). The robot has already GPS, IMU and odometry ...
user avatar
0 votes
1 answer
16 views

Navsat_transform diverges from GPS points

Hi, I'm trying to use the navsat_transform_node as per the example provided in the robot_localization package. However, the output of the node always diverges (quite significantly) from the original ...
user avatar
0 votes
2 answers
25 views

Problem while integrating GPS data into robot_localization

Hi to Tom and everybody, I'm currently making some experiments with robot_localization, and I'm having some problems with the integration of GPS data for global localization of a non-holonomic mobile ...
user avatar
0 votes
1 answer
50 views

Issues using robot_localization with gps and imu

I only have two sensors, gps and and imu, that I am trying to integrate using robot_localization. I've created a launch file based on this question, pasted at the end. There are a couple of issues. ...
user avatar
0 votes
1 answer
52 views

IMU and GPS fusion without odom - robot_localization

I'm using ros Indigo, and trying to fuse IMU and GPS, I don't have any odom source. Reading forum and the roscon presentation about the robot_localization package, I tried the following configuration: ...
user avatar
0 votes
1 answer
20 views

Using robot_localization and navsat_transform_node to transform LIDAR point clouds

Hello everyone, I have a Velodyne VLP-16 LIDAR and a RTK-GPS Inertial Navigation System mounted on a UAV. GPS/IMU data are processed by third-party software and I import accurate GPS/IMU data into ROS....
user avatar
0 votes
1 answer
44 views

robot_localization: navsat transform node does not publish

According to tutorial about GPS Integration and use of navsat transform node, i put into node the imu with absolute heading values, odometry that is the output of second instance of EKF and NavSatFix ...
user avatar
0 votes
1 answer
120 views

robot_localization GPS integration error

###Overview I have been having quite a hard time with setting up my robot to use its GPS. I am attempting to use the navsat_transform_node and two instances of robot_localization. The set up is ...
user avatar
0 votes
1 answer
6 views

navsat robot_localization

In Navasat_transform_node have a question about when the node receives a position becomes GPS latitude and longitude, UTM this format is x, and an identifier of area and band, for example Spain 29T, ...
user avatar
0 votes
1 answer
14 views

navsat_transform_node has zero orientation output?

I'm working with a robot with no wheel odometry measures, and have IMU, GPS and motor commands to fuse. Can anyone clarify how the setup should work for this? At the moment I have GPS, IMU and motor ...
user avatar