MEMS Accelerometer and Gyroscope to Improve Car GPS Navigation System Performance
MEMS Accelerometer and Gyroscope to Improve Car GPS Navigation System Performance - When it comes to very weak GPS signal that you’ve got, the position accuracy derived from GPS receiver might
You will need to use an external sensors such accelerometers, gyroscopes, odometers, and etc to have anavailability and reliability of weak GPS signal. The following article describe you with the using of 3D MEMS accelerometer and one MEMS gyroscope which is integrated in a GPS based car navigation system.
According to the article, the major goal of setting up this system is bridge brief up to 30 seconds GPS outages, 5 Hz continuous and smooth delivery output of position, velocity and heading, filter out bad GPS position and velocity measurement.
You will be taken then to the system configuration section that use ADXRS150 yaw rate gyro and SCA3000 3D accelerometer, MEMS sensor selection, the error model for accelerometers and gyro,
the error model for GPS, Implementation of the Kalman Filter, System alignment and calibration, and Experimental System performance results.
You will find that this GPS car navigation position availability and accuracy can be improved through this low-cost inertial sensors as well as the advantages of this integrated GPS+MEMS system in map matching technique, does not require installation in all vehicle and can be easily transferred between vehicles.
Read complete article about MEMS Accelerometer and Gyroscope to Improve Car GPS Navigation System Performance in this Application Datasheet Article (source: tkt.cs.tut.fi)
Tags: Sensor, GPS, Navigation System, car gps navigation system, MEMS, gyroscope,