Robert Kent Krumvieda

7039136, May 2, 2006

Jan 23, 2004

10/763346

Eric S. Olson - Boulder CO, US
John K. Thomas - Erie CO, US
Wolfgang Kober - Aurora CO, US
Robert K. Krumvieda - Westminster CO, US

TensorComm, Inc. - Westminster CO

H03D 1/04

375346

The present invention provides systems and methods for decreasing interference in a selected coded signal. The system includes a matrix generator for generating a matrix. The matrix may comprise vectors, the elements of which are formed from components of the interference. The interference may exist in the form of co-channel and/or cross channel interference, such as that found in CDMA telephony. The components of this interference may, therefore, be code components of the interference that are used to fill elements of the vectors. Each element of a vector may represent a code component of an interfering coded signal. A processor uses the matrix to substantially remove the interference from the selected coded signal. For example, the processor may generate a projection operator that projects the coded signal substantially orthogonal to the interference such that the impact of interference on the selected coded signal is substantially reduced.

7626542, Dec 1, 2009

Feb 23, 2006

11/362600

Wolfgang Kober - Aurora CO, US
Robert Kent Krumvieda - Westminster CO, US
Lewis Reynolds - Denver CO, US
Steven Alan Kadlec - Lafayette CO, US

Data Fusion Corporation - Northglenn CO

G01S 1/00

34235712

A method and receiver are disclosed for mitigating or substantially canceling signal interference between signals detected at the receiver. Once a presumed interfering signal(s) is acquired, parameters are determined that allow the interferer(s) to be modeled. The phase invariance of the process eliminates the need to acquire the interferer's phase. An orthogonal projection (for projecting onto a detection subspace which is orthogonal to a subspace spanned by the interferer(s)) is applied to the composite of all signals (y) for thereby projecting y onto the detection subspace. The interference subspace is non-orthogonal to a representation of desired (but interfered) signal of the composite signals. With the receiver properly equipped to perform this projection operation, interfering signals, multipath, multipath-like, and structured jamming signals can be effectively diminished.

20030218568, Nov 27, 2003

Sep 12, 2002

10/243301

Wolfgang Kober - Aurora CO, US
John Thomas - Erie CO, US
Robert Krumvieda - Westminster CO, US

Data Fusion Corporation - Northglenn CO

G01S001/00

342/357120

A method and receiver are disclosed for mitigating or substantially canceling signal interference between signals detected at the receiver. Once a presumed interfering signal(s) is acquired, parameters are determined that allow the interferer(s) to be modeled. An orthogonal projection (for projecting onto a subspace spanned by the interferer(s)) is applied to the composite of all signals (y) for thereby projecting y onto this subspace, wherein the subspace is non-orthogonal to a representation of desired (but interfered) signal of the composite signals. With the receiver properly equipped to perform this projection operation, interfering signals, multipath, spoofing and/or meaconing can be effectively diminished.