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7599768 |
Method for computer-assisted determination of an optimum-fuel control of nozzles
Method for the computer-assisted determination of an optimum-fuel control of nozzles according to a control instruction b=Ax. A defined matrix transformation of starting constraints for the mass...
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7593794 |
Optical stabilization system
A method and apparatus are described for controlling the attitude of a vehicle in a space having at least two opposed viewable regions, each region being viewed by a respective first sensor for...
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7584025 |
In-vehicle device, computer readable medium for controlling the same, and method for controlling navigation device
An in-vehicle device includes: a hard disk drive for storing data; a communication element for transmitting a message to an user; an input element for receiving an instruction from the user; a...
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7580778 |
Methods and systems for controlling multi-body vehicles with fuel slosh
Methods and systems for controlling multi-body vehicles with fuel slosh are provided. In a method for stabilizing a vehicle with fuel slosh, a controller for a multi-body assembly is formed by...
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7561947 |
Dynamic CMG array and method
Methods and apparatus are provided for reorienting control moment gyros (CMGs) to compensate for CMG failure or change in spacecraft (S/C) mass properties or mission. An improved CMG comprises a...
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7558654 |
Apparatus and method for providing flight operations integrated planning and analysis tools
An apparatus and method provide flight operations integrated planning and analysis tools (FOIPAT) to perform integrated planning and analysis tasks for autonomous (unmanned) systems operations. The...
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7542829 |
Low earth orbit satellite command planning device and method, and low earth orbit satellite control system including the same
Disclosed is a command planning apparatus of a low-earth orbit satellite, and a low-earth orbit satellite control system including the same. The present invention automates the process of executing...
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7512466 |
High-torque, low power reaction wheel array and method
Methods and apparatus are provided for reaction wheel (RW) assemblies for spacecraft. The apparatus comprises a M/G coupled to an inertia wheel and a controller coupled to the M/G that, in response...
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7487016 |
Method for compensating star motion induced error in a stellar inertial attitude determination system
A method for controlling an actuator of a vehicle comprises providing a dynamic condition sensor generating a vehicle movement signal and a position sensor for generating a reported position. A...
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7487015 |
Emulator for an inertial navigation unit protocol converter
An emulator, which is a computer program, for simulating 32 bit ARINC-429 data output by an Inertial Navigation System on board a P-3 aircraft. The value for each word output by the emulator is...
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7477966 |
Propellant management system and method for multiple booster rockets
Propellant management systems and methods are provided for controlling the delivery of liquid propellants in a space launch vehicle utilizing multiple rockets. The propellant management systems and...
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7471211 |
Celestial object location device
A hand-held electronic celestial object-locating device assists in identifying a celestial object or directing a user to a desired celestial object. The device is useful for locating or identifying...
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7464899 |
Method and system for determining a singularity free momentum path
A method for avoiding singularities in the movement of CMGs in an array of CMGs in a spacecraft includes a first step where a maneuver command to rotate a spacecraft orientation is received. Then,...
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7460987 |
GPS satellite simulation system
A simulation system for simulating a GPS (global positioning system) satellite is configured for acquiring a navigation data in real time from the GPS satellite, generating a simulation signal from...
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7454272 |
Geostationary stationkeeping method
According to one embodiment of the invention, a stationkeeping method for a geostationary satellite includes determining a gravitational force of the sun on the satellite at a beginning of a...
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7451022 |
Calibration of ship attitude reference
A ship includes a star tracker mounted on a platform stabilized in ENU by the inertial navigation system (INS). The line-of-sight (LOS) of the star tracker is directed toward two separated stars,...
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7437224 |
Target acquisition control for spacecraft gimballed payload
A method and apparatus for controlling a gimbaled platform ( 108 ). The method comprises the steps of computing an acquisition phase gimbal angle rate command ω cmd — Acq ( 530 ) from a...
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7437222 |
Gimbal disturbance calibration and compenstion
Various embodiments of the present invention are directed to precision control system for spacecraft gimbaled payloads. Embodiments of the invention provide an innovative technique of calibrating...
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7428405 |
Automatic operation system and method for automating satellite control operation and satellite ground control system using the same
Provided are an automatic operation system for automating satellite control operation, a method thereof, and an automatic satellite ground control system using the same. The object of the present...
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7421319 |
Systems and methods for preflight planning and inflight execution using portable electronic data storage and display devices
This invention provide systems and methods for cockpit flight crew preflight planning and subsequent, systematic recall and execution of procedures, ground/inflight navigation, and communications...
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7415329 |
System and method of providing N-tiered enterprise/web-based management, procedure coordination, and control of a geosynchronous satellite fleet
An N-Tiered enterprise and/or N-Tiered Web-based enterprise system and methods for managing, monitoring, coordinating the procedures of and optionally controlling a fleet of geosynchronous...
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7410130 |
Star-tracker-based attitude determination for spinning spacecraft
A method of determining the attitude of a spinning spacecraft is provided. The method includes stabilizing the spacecraft, initializing the attitude of the spacecraft using star tracker data, and...
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7403843 |
Systems and methods for automated deselection of flight plan information from a display
Systems and methods for automatically switching to a track view mode on a vertical view display. The system determines aircraft position relative to a leg of a flight plan and switches display mode...
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7389161 |
Aeronautical navigation plotting instrument
An aeronautical navigation plotting instrument is provided that includes a plotting frame and a compass rose attached to the plotting frame. The compass rose includes angular markings incrementally...
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7383124 |
ADS-B broadcast monitoring system and method
A vehicle having a first transponder circuit generating an over-the-air transmission signal and a reference signal is disclosed. The vehicle also has a receiver circuit that receives the...
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7376496 |
Spacecraft magnetic momentum control system
Momentum control is maintained in a geosynchronous orbiting spacecraft that uses a plurality of reaction wheel assemblies and a plurality of magnetic torquers to control the spacecraft momentum,...
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7366612 |
Method and apparatus for compensating attitude of inertial navigation system and method and apparatus for calculating position of inertial navigation system using the same
Provided are a method and apparatus for compensating an attitude of an inertial navigation system and a method and apparatus for calculating a position of the inertial navigation system using the...
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7357356 |
Attitude and antenna steering system for geosynchronous earth orbit (GEO) spacecraft
A system for providing attitude and antenna steering for a spacecraft is disclosed. The spacecraft has a number of reaction wheels and a number of antennas. The system includes control logic...
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7346437 |
Secure interactive 3d navigation method and device
A safe interactive navigation apparatus and method allows the crew of an aircraft to prepare and follow a safe flight plan without relying on instrument flying infrastructure. An aircraft...
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7343232 |
Vehicle control system including related methods and components
Embodiments are disclosed for a vehicle control system and related sub-components that together provide an operator with a plurality of specific modes of operation, wherein various modes of...
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7343228 |
Transient cancellation technique for spacecraft solar wing stepping
A method and apparatus for controlling a plurality of solar panels of a spacecraft is described. The method comprises the steps of providing a first step command to a first solar panel, and...
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7337097 |
Dynamic modeling technique for the deployment of large satellite antennas
A method for modeling a structure deployed on a spacecraft. The method includes determining a geometric shape that resembles the structure in a fully deployed configuration; generating time...
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7329168 |
Extended Kalman filter incorporating offline metrology
An algorithm uses offline metrology to control a process by passing information from an outer control loop to an inner control loop, extended Kalman filter estimator. The inner control loop...
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7302323 |
Transportation data recording system
The present invention provides a network data recording system particularly adapted for use in transportation systems. Cameras, microphones and a variety of sensors and existing vehicle systems are...
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7302317 |
System and method to enhance attitude estimation for transfer orbit maneuver
A system and method to enhance attitude estimation for transfer orbit maneuvers of a spinning satellite includes a transfer orbit earth sensor that can receive and convert an infrared radiance to...
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7302316 |
Programmable autopilot system for autonomous flight of unmanned aerial vehicles
A system and method for providing autonomous control of unmanned aerial vehicles (UAVs) is disclosed. The system includes a ground station in communication with an unmanned aerial vehicle. The...
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7260456 |
Pixel-frequency slews and filters for star data measurements
A method and apparatus for reducing centroiding error of a star sensor having a plurality of pixels is disclosed. The method comprises the steps of computing a star sensor angular slew rate of ω...
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7248948 |
Apparatus and method for estimating attitude using inertial measurement equipment
An apparatus for estimating attitude using an inertia measuring apparatus comprising: a Kalman filter 3 adapted to receive a quantity of state ω(t) from the inertia measuring apparatus 1 ,...
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7246776 |
Method and system for CMG array singularity avoidance
The present method provides a method for avoiding singularities in the movement of CMGs in an array of CMGs in a spacecraft. In a first step, a torque command representing a desired torque to...
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7225063 |
Aircraft control system
A flight control system for preventing an aircraft colliding with designated man-made structures in which the geographical position of the aircraft is determined and then compared with...
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7225062 |
Device for indicating the vibration level of a vehicle
A device for indicating at least a first vibration level VIB 1 derived from a first acceleration signal γ 1 includes:
first analysis element FT 1 for resolving the first acceleration...
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7224935 |
Telematics application for implementation in conjunction with a satellite broadcast delivery system
A method of showing approval or disapproval of an item overheard on an audio system. The method includes sending an item via radio waves to an audio system, listening to the item on the audio...
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7212918 |
Aircraft traffic warning system using an ad-hoc radio network
Methods and apparatus are provided for a traffic warning system (TWS) for light aircraft. The TWS comprises a processor coupled to a transceiver, adapted to measure signal strength and send/receive...
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7198232 |
Optimal speed management for reaction wheel control system and method
A spacecraft attitude control system and method in which an attitude controller is configured for sensing three-dimensional attitude of the spacecraft, and producing torque signals for stabilizing...
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7197381 |
Navigational system and method utilizing sources of pulsed celestial radiation
A system and method for navigation utilizing sources of pulsed celestial radiation are provided. A spacecraft, satellite, or other vehicle ( 12 ) has a pulse sensor ( 22 ) mounted thereto for...
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7177763 |
Method and device for preventing unpermitted approach of airplanes to objects on the ground which are to be protected
The invention concerns a method for preventing airplanes from impermissibly approaching defendable ground objects, the method suggests that a defendable ground object is assigned a virtual...
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7174285 |
Method and apparatus for assessing quality of service for communication networks
This invention relates to a method and apparatus for assessing quality of service for communication networks. More particularly, the invention is directed to assessing quality of service in circuit...
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7171290 |
Method and device for controlling satellite attitude and steering using a gyrodyne cluster
In order to control the attitude of a satellite having at least four gyroscopic actuators with respective spinners mounted on gimbals steerable about axes parallel to one or the other of only two...
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7171158 |
Satellite communication system using linear cell tracking
An improved satellite communication device and system are provided. The satellite communication device uses yaw or roll-yaw steering to linearize angular track of uplink cells; one-dimensional...
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7149610 |
Momentum estimator for on-station momentum control
A method and apparatus for estimating spacecraft momentum is disclosed. The method comprises the steps of generating a plurality of spacecraft momentum measurements, fitting the plurality of...
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