Author Archives: odtu_ee

A note on the strapdown algorithms

Posted on September 21, 2011 by odtu_ee

Probably you have noticed that the strapdown implementations in the toolkit directly use the sensor outputs to compute the body updates. For instance, accelerometer outputs (a) are multiplied by the DCM (C) and then added to the velocity state. Those … Continue reading →

Posted in Android, IMU, INS | Leave a comment

Implementing a GPS/INS without a math-coprocessor

Posted on May 10, 2011 by odtu_ee

Recently, I have implemented (embedded) a GPS-INS system in the native environment of my Android phone (a 2.5 years old HTC Hero). The embedded navigation code is capable of processing external inertial sensor and GPS outputs sent to the device … Continue reading →

Posted in Android, INS | Leave a comment

Hello world!

Posted on May 7, 2011 by odtu_ee

Imaginations on the imaginary axis cause cyclo-stationary responses.

Posted in Uncategorized | Leave a comment