Daksh Shukla's profile - activity

Why does the topic: imu/data in the MAVROS package produce, opposite (negative) values for pitch, yaw and pitch rate and

Try to change your package name: soar-to-ros_interface to soar_to_ros_interface, remove hyphens and see what happens. This is the only warning given out during compilation.

I am using Adafruit Ultimate GPS v3 with the nmea_navsat_driver ROS package. I am able to use the nmea_serial_driver node to publish /fix and /vel topics.

However, I don't see Z-axis velocity being published (it is always zero). Upon searching, I found that the Ultimate GPS uses GlobalTop Technology Inc. FGPMMOPA6H GPS Standalone Module and it gives out only the following NMEA messages:

GGA, GSA, GSV, RMC, VTG

And these NMEA messages do not give out Z-axis or Down velocity (NED). So my question is, how do I get this velocity from NMEA messages? Is there another ROS package which does post processing on NMEA sentences and gives out this velocity?

Using: OS - Ubuntu 14.04 and ROS Jade. Running: roslaunch novatel novatel.launch. The process runs for about 20 to 30 seconds and then kills itself, giving out the following error:

REQUIRED process [novatel_node-2] has died! process has died [pid 3522, exit code -11, cmd /home/ku_casl/catkin_ws/devel/lib/novatel/novatel_node __name:=novatel_node..............

I am using a FTDI cable - serial 3.3 V LVTTL to USB converter. The USB port acts as a serial connection. I am using the following configuration in the novatel.launch file:

<launch> <node pkg="novatel" type="novatel_node" name="novatel_node" output="screen" required="true">

    <param name="port" value="/dev/ttyUSB0" />
    <param name="baudrate" value="115200" />
    <param name="odom_topic" value="/gps_odom" />
    <param name="configure_port" value="COM1,115200,RTCM,NONE" />
    <param name="log_commands" value="BESTPOSA ONTIME 1.0; BESTVELB ONTIME 1.0" />
    <param name="gps_default_logs_period" value="1.0" />
    <param name="span_default_logs_period" value="0.0" />

</node>

</launch>

Could anyone please help me on this issue?