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8165795 |
Hybrid inertial navigation system based on a kinematic model
The invention concerns a method for improving determination of inertial navigation parameters (1) of a carrier (1) moving along modelizable kinematic movement components, the method including the...
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8155819 |
System and method for effecting vehicle maneuver to compensate for IMU error
The effects of IMU gyro and accelerometer bias errors are significantly reduced in accordance with the present teachings by a system or method for commanding an IMU or vehicle through a series of...
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8108186 |
Distance-jump-tolerant flight management system
Flight management systems can behave erratically when the distance measurements on which they are based are subject to value jumps because they liken these value jumps to movements of the aircraft...
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8001901 |
Signal transmission surveillance system
A system and method of detecting, processing, and selectively responding to radio frequency transmissions detected by at least one projectile deployed above a geographic area.
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7963442 |
Spin stabilized projectile trajectory control
A Reconfigurable Nose Control System (RNCS) is designed to adjust the flight path of spin-stabilized artillery projectiles. The RNCS uses the surface of a projectile nose cone as a trim tab. The...
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7956606 |
Position sensing assembly
A position sensing assembly includes a bearing element and a helically shaped rotational member used to drive a portion of a sensor assembly, such as a Digital Rotary Magnetic Encoder. Interaction...
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7698064 |
Gas supported inertial sensor system and method
An inertial navigation system is provided. The system includes a sensor block, an outer shell that substantially surrounds the sensor block and a plurality of gas pads connected to the outer shell...
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7409292 |
Method and system for degimbalization of vehicle navigation data
A method and system for degimbalization of sensor outputs is provided. Data output from an embedded GPS inertial navigation system (EGI), which is mounted within a gimbaled system on a vehicle, is...
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7328104 |
Systems and methods for improved inertial navigation
A method for producing inertial measurement data is provided. The method comprises receiving raw inertial measurement data from one or more inertial sensors; receiving raw position data based on...
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7305286 |
System and method for gyro enhanced vertical flight information
A flight instrument and associated method where vertical speed information is combined with gyro information to produce gyro enhanced vertical speed information that is displayed to a pilot. The...
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7248967 |
Autonomous velocity estimation and navigation
Measurement of a spatial velocity vector in order to make determination of a geographical position possible. A spatial velocity meter includes an inertial measurement unit, a direction-sensing...
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7105790 |
Process to control the trajectory of a spinning projectile
A process to control the trajectory of a spinning projectile. The projectile's accelerations are measured by means of an inertial unit in three axes within a reference linked to the projectile so...
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7076342 |
Attitude sensing apparatus for determining the attitude of a mobile unit
An attitude sensing apparatus for determining the attitude of a mobile unit is provided that can reliably estimate an alignment angle between a GPS antenna coordinate system and an IMU coordinate...
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7043343 |
Method for testing a missile time-space-position unit for missile
A method for testing the performance of a Missile Time-Space-Position Information Unit. The method is utilized for Functional, Acceptance and Qualification test of the Missile Time-Space-Position...
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6948367 |
Dual bridge angular and linear accelerometer
An accelerometer includes an inertial platform maintaining an attitude in response to a platform stabilizing controller signal and defining a spin axis and a reference plane. An accelerometer,...
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6928876 |
Dual flexure plate angular accelerometer
A dual capacitance accelerometer system includes two flexure plates coupled to the housing and defining a respective parallel flex axes. A fixed plate is adjacent to and in substantially parallel...
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6895817 |
Dual bridge angular accelerometer
An accelerometer includes an inertial platform maintaining an attitude in response to a platform stabilizing controller signal and defining a spin axis and a reference plane. An accelerometer,...
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6725173 |
Digital signal processing method and system thereof for precision orientation measurements
The present invention provides a digital signal processing method and system thereof for producing precision platform orientation measurements and local Earth's magnetic measurements by measuring...
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6714866 |
Methods and apparatus for installation alignment of equipment
A method for installation alignment of an inertial reference unit (IRU) with vehicle axes when the IRU is installed within the vehicle is provided. The vehicle axes include roll, pitch, and yaw...
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6679457 |
Reaction wheel system with vernier control rotor
A reaction wheel system is provided that includes at least two rotors. The first rotor is the primary rotor that provides the large output torques to the vehicle. The second rotor is a vernier...
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6666410 |
Load relief system for a launch vehicle
A load relief system for a launch vehicle including a wind sensing system responsive to wind speed and direction at selected locations for providing an output of sensed wind speed and wind...
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6654685 |
Apparatus and method for navigation of an aircraft
In accordance with this invention, an apparatus and method for aircraft navigation are provided that utilize a blended architecture consisting of a global positioning system (GPS) and...
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6621059 |
Weapon systems
A weapon system comprising a mobile platform (1) e.g. an aircraft incorporating a first three-axis attitude reference sub-system (13), and a guidable vehicle (3) launchable from the platform (1)...
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6596976 |
Method and system for pointing and stabilizing a device
A method and system for pointing and stabilizing a device that needs to be pointed and stabilized with a desired direction, are disclosed, wherein current attitude measurement and attitude rate...
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6496779 |
Inertial measurement unit with magnetometer for detecting stationarity
A device for measuring a velocity and/or position of a body includes a magnetometer and a measurement unit. The magnetometer is configured to sense a magnetic flux to which the body is exposed. The...
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6380526 |
Employing booster trajectory in a payload inertial measurement unit
A payload launching method measures the attitude of a booster during a launch with an inertial measurement unit on the payload to compare the actual booster trajectory with a desired trajectory to...
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6349652 |
Aeroballistic diagnostic system
A system which is packaged within a projectile fuze body and obtains data relative to the projectile during a launch. Sensors are provided which obtain in-bore data as well as in-flight data. The...
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6314886 |
Projectile to be fired from a weapon barrel and stabilized by a guide assembly
A projectile to be fired from a weapon barrel includes a projectile body and a plurality of stabilizing wings circumferentially distributed about a rearward portion of the projectile body. A pin...
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6317688 |
Method and apparatus for achieving sole means navigation from global navigation satelite systems
A sole means global navigation apparatus adapted for use on an aircraft includes a GPS receiver to provide GPS measurement data and an inertial sensor system adapted to provide inertial...
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6163021 |
Navigation system for spinning projectiles
A navigation system for spinning projectiles using a magnetic spin sensor to measure the projectile roll angle by sensing changes in magnetic flux as the projectile rotates through the earth's...
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6131068 |
Accuracy of an inertial measurement unit
A missile guidance system employs a strap down inertial measurement unit with a separate accelerometer and star sensor that are moved for preflight accelerometer initialization. During flight,...
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6107616 |
Power failure interrupt recovery for the pendulous oscillating gyroscopic accelerometer (POGA)
A system for protecting a pendulous oscillating gyroscopic accelerometer (POGA) from power failure interruption (PFI) events, the POGA having a servo driven member (SDM), rotor driven member (RDM),...
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6037899 |
Method for vectoring active or combat projectiles over a defined operative range using a GPS-supported pilot projectile
For an exact vectoring of active or combat projectiles, a GPS-supported pilot projectile is provided with a satellite navigation system or GPS receiver and continuously detects its own position and...
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5948045 |
Method for airbourne transfer alignment of an inertial measurement unit
A method for determining the initial conditions for an inertial measurement nit (IMU) of a second vehicle launched from a wing of a first vehicle is provided. The method includes the steps of...
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5886286 |
Monitoring safety system
A guidance monitoring safety system for a guided missile having platform os and electromechanical integrators with inputs from a guidance information analyzer. The system monitors malfunctions...
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5886339 |
Missile attitude safing system
An attitude sensing safing system for a missile, which senses an attitude ror of the missile, and activates a dudding signal when the error exceeds a certain value for a predetermined time. The...
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5804812 |
Multiple node lambert guidance system
A multi-node Lambert Guidance System that controls missile velocity along a missile flight path through adjustment of missile attitude during guidance of the missile through an intercept point and...
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5739787 |
Vehicle based independent tracking system
As an improvement to the architecture, utility, efficiency and cost associated with the procurement, setup, and operation of a real-time tracking/autonomous destruct and data recovery system for...
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5721680 |
Missile test method for testing the operability of a missile from a launch site
A missile is tested by first stimulating the performance of missile built-in tests that are stimulated in service by signals from the launch site, and which tests do not require internal access to...
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5660355 |
Angle only range estimator for homing missile
Missile motion information from an inertial measurement set and the angle-to-target information from a seeker/sensor is used to estimate range and/or time to go on a homing missile without a direct...
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5660356 |
System for providing power and roll motion stability in a vehicle
A dual flywheel assembly for use in an airborne vehicle for storing mechanical energy therein prior to flight and for permitting the extraction of electrical energy therefrom during flight, which...
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5647558 |
Method and apparatus for radial thrust trajectory correction of a ballistic projectile
A system for controlling the placement of a gun launched projectile adapted with a radial impulse motor incorporated into the projectile for imparting a thrust subsequent to launching and a...
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5451014 |
Self-initializing internal guidance system and method for a missile
A guidance system for internally controlling the flight path of a missile includes a guidance platform having dispersion control means mounted on the guidance platform for detecting acceleration of...
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5397079 |
Process for the autonomous positional control of guided missiles
Process for the autonomous positional control of guided missiles, which are to be launched from a carrier plane, but without the cooperation thereof, wherein data on the instantaneous position of...
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5360184 |
High-performance, low-cost inertial guidance system
One or more strap-down star tracker modules and a strap-down gyro module cooperate to provide a high-performance and low-cost inertial guidance system especially well suited for ballistic missiles....
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5274314 |
Adaptive friction compensator
A friction compensation system which augments a stabilization rate loop includes a first summer (11) responsive to a rate command signal and a feedback signal to provide a torque command signal, a...
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5260709 |
Autonomous precision weapon delivery using synthetic array radar
A system and method that uses differential computation of position relative to a global positioning system (GPS) coordinate system and the computation of an optimum weapon flight path to guide a...
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5150856 |
System for aligning the inertial unit of a carried vehicle on that of a carrier vehicle
The system may be used, for example, to initialize the inertial unit of a missile from the inertial unit of a vehicle carrying the missile. According to the invention, a servo-control circuit is...
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5065956 |
Method for detecting changes in spin rate of a missile in flight
A method of determining the difference between the actual rotational speed of the body of a guided missile and a nominal rotational speed is shown to consist of the steps of comparing a shaped...
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5020745 |
Reaction wheel fricton compensation using dither
A reaction-wheel stabilized spacecraft reduces attitude errors at wheel reversals by application of a dither component to the wheel torque command signal.
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