User Tools

Site Tools


trajectory

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
trajectory [2016/01/14 11:48]
jeff.fagerman
trajectory [2016/01/14 11:49] (current)
jeff.fagerman
Line 1: Line 1:
 ====== What is a Trajectory? ====== ====== What is a Trajectory? ======
  
-A trajectory is essentially a route or pathway of an object over the course of time. For mobile lidar mapping it is absolutely essential and includes positioning (XYZ) and orientation. It can be directly determined or indirectly. It is generally needed at 100 to 200Hz at a minimum. Most people are familiar with it in terms of navigation via their smart phone or other similar device.+[[https://​en.wikipedia.org/​wiki/​Trajectory|trajectory]] is essentially a route or pathway of an object over the course of time. For mobile lidar mapping it is absolutely essential and includes positioning (XYZ) and orientation. It can be directly determined or indirectly. It is generally needed at 100 to 200Hz at a minimum. Most people are familiar with it in terms of navigation via their smart phone or other similar device.
  
 Most often the trajectory is a direct result of an Inertial Navigation System ([[https://​en.wikipedia.org/​wiki/​Inertial_navigation_system|INS]]). An INS combines an [[https://​en.wikipedia.org/​wiki/​Inertial_measurement_unit|IMU]] (inertial measurement unit) along with a [[https://​en.wikipedia.org/​wiki/​Satellite_navigation|GNSS]] (global navigation satellite system). An INS provides the most widely usable and affordable solution to determine a trajectory. GNSS provides global coverage and virtually always uses GPS (provided by the US government). More governments are adding more satellites now such as GLONASS (Russia), Beidou (China), Gallileo (Europe), etc. See [[https://​en.wikipedia.org/​wiki/​Satellite_navigation|here]] for more information as it becomes available. The GNSS provides positional geo-referencing (i.e. coordinates). Most often the trajectory is a direct result of an Inertial Navigation System ([[https://​en.wikipedia.org/​wiki/​Inertial_navigation_system|INS]]). An INS combines an [[https://​en.wikipedia.org/​wiki/​Inertial_measurement_unit|IMU]] (inertial measurement unit) along with a [[https://​en.wikipedia.org/​wiki/​Satellite_navigation|GNSS]] (global navigation satellite system). An INS provides the most widely usable and affordable solution to determine a trajectory. GNSS provides global coverage and virtually always uses GPS (provided by the US government). More governments are adding more satellites now such as GLONASS (Russia), Beidou (China), Gallileo (Europe), etc. See [[https://​en.wikipedia.org/​wiki/​Satellite_navigation|here]] for more information as it becomes available. The GNSS provides positional geo-referencing (i.e. coordinates).
trajectory.txt ยท Last modified: 2016/01/14 11:49 by jeff.fagerman

Bitnami