Rockwell Collins, Inc.

Rockwell Collins Control Technologies, Inc.

Athena Technologies, Inc.

Vladislav Gavrilets

James H Doty

David W Vos

Keith M Allen

Patrick Y Hwang

William T Kirchner

Damien B Jourdan

Gary A McGraw

Huan T Phan

Bryan M Krawiec

Ramachandra J Sattigeri

Jeffrey B McNamara

Maxime M Gariel

Jesse W Oltrogge

Ben T Ludington

Behnam Motazed

Daniel L Woodell

Richard D Jinkins

Richard Marcel Rademaker

Michael D Piedmonte

Christopher M Boggs

Douglas A Bell

Max G Taylor

Angus L McLean

Alexander Roup

Allen David Wu

Robert M Caplinger

Sami S Mina

Paul J Ronan

Gilles Tatham

Allen D Wu

Eric Brewer

David William Vos

Michael Daniel Piedmonte

A system and method for enhanced aircraft-based targeting senses RF emissions or other signals associated with a target while navigating a trajectory through a GPS-challenged airspace. While the target is being observed, the aircraft targeting system tracks GPS-challenged state vectors (e.g., via an onboard inertial reference system) and pressure altitudes consistent with each observation. When the aircraft emerges from the GPS-challenged airspace, the targeting system determines multiple GPS-driven subsequent absolute positions of the aircraft. The targeting system determines a refined estimate of the target location via batch factor graph optimization of measurements taken while inside and outside of the GPS-challenged airspace.

System and method for navigation and targeting in GPS-challenged environments using factor graph optimization

A system for providing maneuvering behaviors to a vehicle is disclosed. The system may include one or more controllers communicatively coupled to one or more vehicles. The one or more controllers may include one or more processors configured to execute one or more program instructions causing the one or more processors to: initiate one or more maneuver primitives in response to decision engine selection; receive a plurality of input parameters for the one or more maneuver primitives, the plurality of input parameters including one or more initialization definition input parameters, one or more goal definition input parameters, one or more navigation state input parameters, one or more design input parameters, and one or more vehicle performance envelope input parameters; and generate one or more control signals at one or more predetermined intervals of time to maneuver the one or more vehicles based on the decision engine selection.

System and method for providing maneuvering behaviors to a vehicle using maneuver primitives

A system and method established and maintains precision relative position, navigation, and timing (PNT) across a network of at least four mutually connected mobile platforms. In embodiments, a key (e.g., advantaged, absolute positioning capable) node of the network determines its pressure altitude and inertial state relative to its platform reference frame and receives inertial state and pressure altitude data from each neighboring node (in exchange for its own) to estimate the relative position and orientation of each neighbor node in its platform frame. The key node performs ranging to each neighboring node, and the neighboring nodes additionally range between each other and exchange ranging data with the key node. By correcting position and orientation estimates via ranging data, the key node determines and maintains extended relative PNT (e.g., in GPS-denied areas), which relative PNT solution is distributed across all network nodes.

System and method for maintaining cooperative precision navigation and timing (PNT) across networked platforms in contested environments

Systems and methods for use in navigating aircraft are provided. The systems can use Geometry Redundant Almost Fixed Solutions (GRAFS) or Geometry Extra Redundant Almost Fixed Solutions (GERAFS) to compute high confidence error bounds for a heading angle estimate or pitch angle derived using signals received on at least two antennas.

Heading or pitch determination systems and methods with high confidence error bounds

A system and a method of determining an absolute position of a first vehicle can be used in restricted areas. The system performs operations of or the method includes receiving image data from a vision system mounted on a second vehicle, determining a first location of the second vehicle using at least positions of stars in the image data, providing the first location to the first vehicle, determining a first relative position between the first vehicle and the second vehicle using at least one signal communicated between the first vehicle and the second vehicle, and determining the absolute position using at least the relative location data and the first location.

Multi-aircraft vision and datalink based navigation system and method

An aircraft, a system, and a method. The aircraft may include a computing device. The computing device may include a processor. The processor may be configured to utilize inertial navigation data, global navigation satellite system (GNSS) measurements, and flight trajectory data to compute navigation data and a predicted horizontal integrity level (HIL). The processor may be further configured to output the navigation data and the predicted HIL to be used for performance of a required navigation performance (RNP) procedure or a preflight planning procedure.

Navigation system and method

Systems and methods for determining angle of attack (AOA) for an aircraft are disclosed. In implementations, a kinematic AOA signal and an aerodynamic AOA signal are determined based on measurements received from an airspeed sensor and an inertial reference system (IRS) or attitude and heading reference system (AHRS). The kinematic AOA signal is low pass filtered and the aerodynamic AOA signal is band-pass filtered. A blended AOA signal for the aircraft is then determined by summing the filtered kinematic AOA and aerodynamic AOA signals.

Angle of attack estimation system and method

A system may include a follower aircraft including a processor configured to: determine a follower aircraft location at a time t; receive a real-time kinematics (RTK) update from a lead aircraft, the RTK update including information associated with: a lead aircraft location at the time t, the lead aircraft location at a time trelative to the lead aircraft location at the time t, and an object location at the time trelative to the lead aircraft location at the time t; perform RTK processing to determine the follower aircraft location at the time trelative to the lead aircraft location at a time t; determine the follower aircraft location at a time trelative to the follower aircraft location at the time tby utilizing time relative navigation (TRN); and determine the object location at time trelative to the follower aircraft location at the time t.

Lead and follower aircraft navigation system

Systems and methods configured to adaptively control input sequences that are used to conduct qualification tests of simulators are disclosed. An input sequence may be adaptively controlled by: providing the input sequence to a simulator configured to simulate operations of a device; comparing output of the simulator to a set of recorded operation data obtained from the device; adaptively modifying the input sequence within specified bounds to produce a modified version of the input sequence to reduce one or more differences that exist between the output of the simulator and the set of recorded operation data; and providing the modified version of the input sequence to the simulator to simulate operations of the device.

Adaptive control for simulator input generation

A collision avoidance system includes a processor configured to determine first and second positions of an intruder in first and second images, respectively, determine an angular position change of the intruder by comparing the first and second positions, determine a rate of change of a line of sight angle from an aircraft to the intruder based on the angular position change and a time between the first and second images, determine a rate of change of the angular size of the intruder based on a difference in angular size of the intruder from the first to second image and the time between the first and second images, and provide an alert to an operator of the aircraft in response to the ratio of the rate of change of the line of sight angle and the rate of change of the angular size of the intruder being less than a threshold.

Midair collision threat detection and assessment using visual information

A system includes a first solution engine, second solution engine, output voter engine, and output modification engine. The first solution engine receives first sensor data associated with a first error rate, and determines at least one first flight parameter based on the first sensor data. The second solution engine receives the first sensor data and second sensor data associated with a second error rate, and determines at least one second flight parameter based on the first and second sensor data. The output voter engine determines a difference between the flight parameters, compares the difference to a first threshold, and generates an output including the at least one first flight parameter or the at least one second flight parameter. The output modification engine receives the output from the output voter engine, modifies a rate of change of the output to be less than a second threshold, and transmits the modified output.

Methods and systems for high accuracy and integrity estimation of flight critical aircraft states

Systems and methods for navigation of a vehicle use a processing system. The systems and methods can allow an aircraft to take-off in low visibility conditions. The processing system includes a cross tracker, an error processor and an error estimator. The cross tracker is configured to determine a cross track deviation using a hybrid positon and runway heading data. The error processor is configured to determine the hybrid positon from inertial reference system data and corrected error data, and the error estimator is configured to provide the corrected error data using estimates derived from delta range data from a global navigation satellite system receiver.

Guidance system and method for low visibility takeoff

Systems and a related method for internally monitored navigation replace one or more inertial reference units (IRU) of an aircraft navigation system with GNSS-assisted multi-mode receivers (MMR) including dual-antenna receivers. Each MMR may validate inertial position data generated by a remaining IRU by detecting drift errors in the inertial position data or latent faults in the IRU. The system may include, in place of one or more IRUs, attitude heading and reference systems (AHRS) incorporating lower-grade high-performance inertial sensors. Internal monitoring of the remaining IRUs or the inertial position data generated thereby may alternatively be carried out by the AHRS. Based on internal monitoring by the MMRs and/or AHRS, user display and flight control systems of an aircraft can exclude a faulty IRU, preventing the use of position solutions incorporating erroneous inertial data.

Air data, attitude and heading reference system (ADAHRS) replacement architecture

An avionics computing device of an aircraft including a rotor may include a non-transitory computer-readable medium and a processor communicatively coupled to the non-transitory computer-readable medium. Upon an occurrence of a condition indicative of a requirement to perform an autorotation maneuver, the processor may be configured to generate autorotation guidance commands based on a generated feasible three-dimensional autorotation trajectory. The generated feasible three-dimensional autorotation trajectory may be for the autorotation maneuver of an aircraft including a rotor. The generated autorotation guidance commands may be configured to guide a pilot of the aircraft to perform the autorotation maneuver of the aircraft along the generated feasible three-dimensional autorotation trajectory. The processor may further be configured to output data associated with the generated autorotation guidance commands to an input/output device for presentation to the pilot.

Growing community of inventors

McLean, VA, United States of America

Vladislav Gavrilets