Research/Patents/US 5640325
US 5640325

SENSOR ARRAY DYNAMIC POSITION AND ORIENTATION DETERMINATION SYSTEM

Assignee

LITTON SYSTEMS, INC.,

Filed

Sep 13, 1988

Granted

Jun 17, 1997

Location

CHATSWORTH CA US

Abstract

A system, which uses inertial measurement units, is shown for determining the position and orientation of a towed array of sensors used for target detection. The system uses an onboard master inertial navigation system and a relative position determination mechanism to generate a first estimated position for each inertial measurement unit within the array. Each inertial measurement unit measures force and angular change information used by an onboard computer to create a second estimated position by known methods for each inertial sensor. An error signal represented by the difference between the two estimated positions for each inertial unit is processed over time by a Kalman filter to reduce the error in the heading and attitude determined for each inertial unit to establish an accurate location for each inertial unit and, thus, the towed array of such units.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Apr 18, 1989

Rescinded

Jun 12, 1996

Duration

7 years, 1 month

Inventor

  • 1HAL W. BANBROOK

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records