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Vehicle dynamics conditioning method on MEMS based integrated INS/GPS vehicle navigation system

  • US 20080071476A1
  • Filed: 09/19/2006
  • Published: 03/20/2008
  • Est. Priority Date: 09/19/2006
  • Status: Abandoned Application
First Claim
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1. A navigation method of conditioning ground vehicle'"'"'s dynamics for microelectro mechanical system (MEMS) based integrated inertial navigation system (INS)/GPS navigation systems, comprising the steps of:

  • (a) defining vehicle dynamics conditions in advance as a function of accelerations and angular rates obtained from inertial sensors;

    (b) receiving the accelerations and angular rates corresponding to coordinates of a ground vehicle from inertial sensors mounted on the INS;

    (c) detecting a current dynamics condition of the vehicle by evaluating the accelerations and angular rates from the inertial sensor;

    (d) sending measured data indicative of the detected vehicle dynamics condition to a Kalman filter which integrates the INS and GPS to conduct a Kalman filter processing incorporating the vehicle dynamics condition; and

    (e) repeating the steps (b) to (d) to obtain optimum estimates of current vehicle position, velocity and orientation.

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