Thales Management & Services Deutschland Gmbh

Thales Usa, Inc.

André Schüttpelz

Ulrich Kälberer

David Carsenat

Andrea Cucurachi

Stephen Rowson

Nathan Deloffre

Kevin L McGahee

Paolo Lunardi

Massimiliano Ferla

Michel Procoudine-Gorsky

Edwin Schackmann

Marcello Sordelli

Holger Neufeldt

Mark Cagle

Arberita Kusari

Matthew Timothy McNally

Joseph Eugene Parsons

Andrija Velimirovic

Anthony James Albanese

Francesco Torriano

Christopher Giacoponello

Brendon Conroy

Michael Theobald

Sébastien Bomart

Frieder Beck

Scott Hauswald

William Hubert

A control system in communication with one of an aircraft navigational aid system and an aircraft surveillance system is described. The control system obtains measurement data associated with radio frequency (RF) signals transmitted by the one of the aircraft navigational aid system and the aircraft surveillance system from an unmanned aerial vehicle (UAV) reporting the measurement data. The control system also determines whether the measurement data indicates the RF signals are within a range of values based on a location of the UAV in an airspace proximate to the one of the aircraft navigational aid system and the aircraft surveillance system. The control system further controls the RF signals transmitted by the one of the aircraft navigational aid system and the aircraft surveillance system based on the measurement data and the location of the UAV. Methods performed by the control system are also described.

End-to-end unmanned control system of aircraft navigation and surveillance systems

An instrument landing system (ILS) is described. The ILS comprises a plurality of antennas and a plurality of antenna radio units (ARUs). Each ARU of the plurality of ARUs operates to generate a modulated RF signal provided to a different one of the plurality of antennas for transmission. The ILS further comprises a central processing unit that operates to control the ARUs to adjust synchronization between the modulated RF signal provided by the ARUs to the plurality of antennas for transmission.

Antenna and glide path array for small footprint aircraft precision approach and landing system

A test metric for satellite sent GNSS code signals is proposed, wherein a signal sent by each satellite i is received at different GNSS receivers, and bias-removed, averaged over the receivers and normalized measurement values are derived out of autocorrelation function values. A correlation matrix Ris built from a matrix Xcontaining the measurement values in the form of measurement value vectors {right arrow over (X)}from the present time epoch tand from previous time epochs twith k=1, . . . , n&#x2212;1, wherein a principal component analysis is done of matrix R, wherein a transformed vector {right arrow over (T)}=PC&#xb7;{right arrow over (X)}is calculated, with PCcontaining at least two eigenvectors having the largest eigenvalues of all eigenpairs. A signal quality monitor test metric SQMis built from the square sum of the entries of transformed vector {right arrow over (T)}, and if SQMis larger than a threshold THR, the satellite signals are disallowed for position determination at all GNSS receivers.

Method for operating a plurality of GNSS receivers for detecting satellite signal deformation

A Global Navigation Satellite System receiver for position determination receives from a multitude of satellites a respective GNSS code signal, which are correlated with a reference code signal to obtain an autocorrelation function. A multitude of function values of the autocorrelation function at different discrete chip spacings (chosen asymmetrically with respect to a prompt chip spacing) are analyzed and used in obtaining a test metric. Using the test metric, a decision is made whether the received GNSS code signal is suitable or unsuitable (thereafter excluded) for a position determination due to multipath signal components. A bias removal is performed taking into account corresponding function values of an autocorrelation function that would result from a received GNSS code signal of the satellite unaffected by multipath signal components. This provides a simple method for operating a GNSS receiver minimizing errors in position determination caused by multipath signal components.

Method for operating a GNSS receiver, with GNSS signal deselection

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Sachsenheim, Germany

André Schüttpelz