Christopher Jon Lund

US Patent:

7605751, Oct 20, 2009

Filed:

Sep 14, 2006

Appl. No.:

11/531747

Inventors:

Brian W. Schipper - Brooklyn Park MN, US
Christopher A. Lund - Otsego MN, US
Lawrence C. Vallot - Shoreview MN, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

G01S 1/00

US Classification:

34235706

Abstract:

A method and systems for processing Global Positioning System (GPS) signals is provided. The method includes determining if two signals or more signals with the same pseudorandom number bit sequence (PRN) are detected by a GPS receiver.

US Patent:

7840381, Nov 23, 2010

Filed:

Oct 3, 2008

Appl. No.:

12/245250

Inventors:

Christopher A. Lund - Otsego MN, US
Lawrence C. Vallot - Shoreview MN, US
Scott I. Snyder - Mahtomedi MN, US
Richard S. Russell - Roseville MN, US

Assignee:

Honeywell International Inc. - Morristown

International Classification:

G06F 19/00

US Classification:

702183

Abstract:

A method of determining an operational state of a navigation system of a platform is provided. The method comprises testing at least a portion of hardware in the navigation system. Additionally, a measurement of at least one navigation variable from an inertial sensor is combined with a measurement of another navigation variable. A plurality of residuals for the measurement of at least one navigation variable and the measurement of another navigation variable are determined with a blending filter. An error for the measurement of at least one navigation variable is estimated based on the plurality of residuals. The method also predicts an error for the measurement of at least one navigation variable while the navigation system is in route. A determination is made as to whether the navigation system meets operational standards based on testing at least a portion of hardware, estimating an error for the measurement of at least one navigation variable, and predicting an error for the measurement of at least one navigation variable. Finally, one of a first state and a second state of the navigation system is output, the first state indicating that the navigation system does meet operational standards and the second state indicating that the navigation system does not meet operational standards.

US Patent:

7844397, Nov 30, 2010

Filed:

Jan 27, 2006

Appl. No.:

11/341812

Inventors:

Christopher A. Lund - Otsego MN, US
Lawrence C. Vallot - Shoreview MN, US
Wayne A. Soehren - Wayzata MN, US
Mario Ignagni - Roseville MN, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

G01C 21/00

US Classification:

701220, 701215

Abstract:

A relative navigation system including a first unit responsive to the motion of a first position, a second unit responsive to the motion of a second position and a processing unit that generates a relative navigation solution as a function of first unit information and second unit information. The generated relative navigation solution is indicative of at least one of: a relative position vector of the second position relative to the first position, a relative velocity of the second position relative to the first position, and a relative attitude of the first unit at the first position relative to the second unit at the second position.

US Patent:

8019538, Sep 13, 2011

Filed:

Jul 25, 2007

Appl. No.:

11/828116

Inventors:

Wayne A. Soehren - Wayzata MN, US
Christopher A. Lund - Otsego MN, US
Lawrence C. Vallot - Shoreview MN, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

G01C 21/16

US Classification:

701213, 701200, 701220, 701221

Abstract:

A relative navigation system and method are disclosed. The relative navigation system includes a first sensor unit responsive to a motion of a first position, a second sensor unit responsive to a motion of a second position, and a first processing unit associated with at least one of the first sensor unit and the second sensor unit and communicatively coupled to the first sensor unit and the second sensor unit. The first processing unit is configured to generate relative navigation solution information associated with first sensor unit information and second sensor unit information.

US Patent:

20040133346, Jul 8, 2004

Filed:

Jan 8, 2003

Appl. No.:

10/338415

Inventors:

Charles Bye - Eden Prairie MN, US
Christopher Lund - Otsego MN, US
Lawrence Vallot - Shoreview MN, US

International Classification:

G01C021/26

US Classification:

701/210000, 701/200000

Abstract:

A navigation system includes a Kalman filter to compensate for bias errors in inertial sensing elements. An observed pitch, roll or heading change is input to the Kalman filter either from an aiding source or when the navigation system is in a known condition. The Kalman filter generates a correction signal that is provided to the navigation computation system.

US Patent:

20160239455, Aug 18, 2016

Filed:

Feb 13, 2015

Appl. No.:

14/622571

Inventors:

- Morristown NJ, US
Christopher Jay Matthews - Minneapolis MN, US
Dang Tu Van-Cao - Champlin MN, US
Christopher A. Lund - Otsego MN, US
Timothy Merrill Buck - Oakdale MN, US

International Classification:

G06F 13/42
G06F 12/02
G06F 13/30
G11C 7/10
G06F 13/16

Abstract:

A multiple processor architecture with flexible external input/output interface is provided. In one embodiment, an open flexible processor architecture avionics device comprises: a multiple processor architecture having a primary processor, a secondary processor, a random access memory (RAM) coupled to at least the secondary processor, and a shared memory coupled to the primary and secondary processor; and a flexible input/output (I/O) interface coupled to the multiple processor architecture, wherein the flexible I/O interface provides I/O access to the primary processor using a fixed I/O protocol, and provides I/O access to the secondary processor using at least one re-configurable I/O protocol; wherein the primary processor is dedicated to executing embedded software for implementing a primary base functionality, the primary processor has read and write access to the shared memory, and the primary processor is not reprogrammable; and wherein the secondary processor has read-only access to the shared memory and is programmable.