×

Gravity aided inertial navigation system

  • US 5,339,684 A
  • Filed: 12/10/1991
  • Issued: 08/23/1994
  • Est. Priority Date: 12/10/1991
  • Status: Expired due to Term
First Claim
Patent Images

1. A navigation system, comprising:

  • a gravity gradiometer means;

    a three axis inertial position determining means including a vertical accelerometer means;

    a vertical displacement sensor; and

    an optimal filter means for integrating electronic outputs from said gravity gradiometer means, said three axis inertial position determining means and said vertical displacement sensor.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×