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7586075 |
Method for analyzing output data of array subelements of an imaging segmented array
A position of a feature in a scene is located by forming an image of the feature using a segmented array having a plurality of array subelements. Each of the array subelements has an output signal....
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7581480 |
Distributed ground-based threat detection system
A distributed ground sensor threat detection system, which is an automated missile warning system designed to provide reliable, timely and accurate missile location information of shoulder-launched...
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7565858 |
Distributed ground-based threat detection system
A distributed ground sensor threat detection system, which is an automated missile warning system designed to provide reliable, timely and accurate missile location information of shoulder-launched...
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7521664 |
Laser direction detection
Apparatus for determining a direction of low power radiation originating from at least one source, the radiation arriving essentially collimated, the apparatus including an opening, at least two...
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7474856 |
Method and device for producing an optical link with laser pulses
A method and device produce an optical link with laser pulses between an emitter of the pulses and a receiver of the pulses. The optical link is used by a locating device for locating a body moving...
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7411167 |
Tracking a moving object from a camera on a moving platform
A method to dynamically stabilize a target image formed on an image plane of an imaging device located in a moving vehicle. The method includes setting an origin in the image plane of the imaging...
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7385759 |
Optical system with variable pointing and method implementing such a system
An optical system including a telescope and a principal pointing device for selecting a direction of observation is disclosed. The system furthermore includes at least one secondary pointing device...
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7378629 |
Detection device comprising a parabolic mirror and use of said device in an overflight machine
The invention relates to a detection device, comprising a parabolic mirror ( 1 ) and several radiation detectors ( 2 - 5 ). The detectors are placed in the focal plane (O, X′-X, Y′-Y) of the...
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7339731 |
Self-aligning telescope
Embodiments of the present disclosure include self-aligning telescope control systems and self-alignment methods. In an embodiment, a telescope control system orients a telescope with respect to...
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7312429 |
Method and apparatus of using optical distortion in a directed countermeasure system to provide a variable field of view
A single, hard-mounted set of optics is utilized to replace a two field-of-view system for directed countermeasures. It includes within one continuous but distorted field of view the capability to...
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7276681 |
On-board light source based gain correction for semi-active laser seekers
The invention provides a method and apparatus for correcting for gain changes in detectors in a guided vehicle. In one version of the invention, an on board light source is used to generate a...
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7265331 |
Optical sensing apparatus and method for determining highest intensity of light in an array
A plurality of optical sensing elements in an array where each element has a unique element address identifying the element location. Each element senses light and produces an element address...
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7230221 |
Portable air defense ground based launch detection system
A ground based launch detection system consisting of a sensor grid of electro-optical sensors for detecting the launch of a threat missile which targets commercial aircraft in proximity to a...
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7227114 |
Method of estimating the attitude of a space device with improved precision
A method of determining the attitude of a spacecraft is provided. The method may include sensing the projections of a plurality of stars on a sensor, converting the projections into sensor-star...
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7214916 |
Optical arrangement for a homing head with movable optical elements
An optical arrangement ( 2 ) for a homing head ( 16 ), for the purpose of imaging an object scene onto a detector unit ( 4 ), including a control unit ( 24 ), a first optical unit ( 10 ) having two...
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7151245 |
Systems and methods for compensating for dim targets in an optical tracking system
A system and method are provided for controlling an optical imaging system capable of providing an image of a target. The system includes a reflector, an optical amplifier and a tracking device....
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7138646 |
Light receiving device with controllable sensitivity and spatial information detecting apparatus with charge discarding device using the same
A spatial information detecting apparatus using an intensity-modulated light has a photoelectric converter for receiving a light provided from a space, into which a light intensity-modulated by a...
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6987256 |
Polarized semi-active laser last pulse logic seeker using a staring focal plane array
An improvement in a semi-active laser last pulse logic missile seeker is disclosed and claimed. In one embodiment, the improvement includes a first polarizer disposed in the detection field of view...
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6872960 |
Robust infrared countermeasure system and method
A system and method for focusing electromagnetic energy on a moving target. Generally, the inventive system sends a pilot beam to a target and analyzes a return wavefront to ascertain data with...
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6795174 |
Tracking systems
A system for tracking a projectile utilizing a laser beam modulated by an acousto-optic cell. Transponders distributed on hemispheres around the rear of the projectile detect the scanned beam and...
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6741341 |
Reentry vehicle interceptor with IR and variable FOV laser radar
A dual mode seeker for intercepting a reentry vehicle or other target is disclosed. In one embodiment, the seeker is configured with an onboard 3D ladar system coordinated with an onboard IR...
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6738012 |
Protecting commercial airliners from man portable missiles
A commercial airliner ( 10 ) carries a sensor that detects a characteristic ( 21 ) associated with a man portable missile ( 20 ). Raw sensor data is transmitted via a wireless data-link ( 41 ) to...
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6723975 |
Scanner for airborne laser system
A multi-axis laser scanner and receiver capable of providing laser scanning in multiple fields of view using a microscanner and a fold mirror with a patterned aperture. The fold mirror has a...
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6700108 |
Means for protecting optical focal plane sensor arrays against excessive irradiation
An imaging or viewing system, which automatically compensates for bright spots, which tend to overload or saturate imaging system. The system can be used with imaging type tracking systems, viewers...
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6674520 |
Closed-loop infrared countermeasure system using a high frame rate infrared receiver with nulling sequence
A missile tracking and deflection system for protecting a platform includes a missile warning system for detecting the presence of a missile and generating a warning signal. A countermeasure...
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6556351 |
System and method for attitude determination based on optical imaging
A method and apparatus is provide for receiving a first set of optical data from a first field of view and receiving a second set of optical data from a second field of view. A portion of the first...
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6410897 |
Method and apparatus for aircraft protection against missile threats
A two-color infrared warning device, having both wide-angle and narrow-angle search capabilities, and a directional countermeasure device are mounted on a gimbal pointing in the same direction. The...
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6369885 |
Closed-loop infrared countermeasure system using high frame rate infrared receiver
A missile tracking and deflection system for protecting a platform includes a missile warning system for detecting the presence of a missile and generating a warning signal. A countermeasure...
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6362464 |
System for stellar inertial attitude determination
An apparatus for determining stellar inertial attitude based upon a plurality of stars includes a star tracker and a controller. The star tracker is used to sense the positions of stars and...
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6310730 |
Optical system with asymmetric optical corrector
An optical system includes a curved window, an asymmetric, scoop-shaped optical corrector adjacent to a curved inner surface of the window, an optical train positioned such that the optical...
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6265704 |
Tracking means for distant ballistic missile targets
A laser tracking system steers a beam of laser energy which is dithered in two directions to scan the surface of a moving object. A laser energy detector detects laser energy reflected from the...
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6259111 |
System for tracking movement of an object
The present invention is generally directed to a system for taking displacement measurements of an object. The invention is realized by various embodiments. In one embodiment, the invention...
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6246056 |
Earth sensor
An apparatus for determining the attitude of an orbiting spacecraft includes an optical system for generating an image on a substrate of a body around which the spacecraft is orbiting, an infrared...
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6201230 |
Sensor system with dynamic optical corrector
A programmable optical system that dynamically corrects or induces aberrations into the optical path of a missile seeker. The system is dynamic in that the amount and type of aberration may be...
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6201231 |
Testing system for measuring and optimising target tracking systems
Described is a testing system which has a target point light source (12), a tracking light source (18) and therebetween a projection wall (24). Associated with the target point light source (12) is...
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6180945 |
Dual spiral photoconductive detector
A photoconductive detector (3) comprises a single continuous photoconductive strip consisting of two interleaved photoconductive spiral paths (1, 2) separated by much thinner gaps (5, 6). The two...
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6154317 |
Device for stabilizing of a remotely controlled sensor, like a camera
A device for stabilizing of a remotely controlled sensor like a camera includes a gimbal system with an inner yaw gimbal carrying the sensor and an outer yaw gimbal and an inner pitch gimbal and...
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6123287 |
Missile tracking system having nonlinear tracking coordinates
A simplified missile tracker system that utilizes a single field of view while maintaining both the high resolution required for tracking and the wide field of view required for missile...
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6121606 |
Multi detector close packed array rosette scan seeker
A rosette or co-rotating vector scanning seeker detector array providing improved data rate and scanned field coverage. Several discrete detector elements are formed in an array on the detector...
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6060703 |
Coaxial unfocused optical sensor for dual mode seekers
The present invention is directed to an unfocused optical sensor including a dual mode optical and radio frequency (RF) sensor system for use with a guidance system of a munition. The inventive...
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6060702 |
Low-cost light-weight star tracking telescope
Three folded Maksutov/Bouwers telescopes formed in a single housing to provide focused images from three angularly spaced fields of view. The fields of view are positioned 30° from a central axis...
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6057536 |
Laser along body tracker (SABOT II)
A non-imaging laser-based tracking system for tracking the position of a targeted moving object. The tracking system includes two lasers: a reference laser and a slave laser. Each laser is a...
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6026337 |
Microbolometer earth sensor assembly
An earth sensor assembly for an orbiting spacecraft which includes a two dimensional microbolometer area array detector as the detective source for capturing full or partial infrared (IR) images of...
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6023058 |
Photosensitive detector and mosaic of photosensitive detectors for the detection of luminous flashes and applications
A photosensitive detector (1) for detecting luminous flashes (2) is provided with a photosensitive diode (3) which is linked to a positive voltage and to ground via a resistor R1 and which is...
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6012000 |
Simplified onboard attitude control based on star sensing
An onboard star tracking system is used to provide continuous attitude data based on a fixed star catalog. An orbital position reference for the sensed star data is estimated from uploaded data....
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5979826 |
Hybrid composite article and missile components and their fabrication
A surface-protected composite article, such as a missile component, is prepared with a heat-sink substrate, a first composite layer of an pre-ceramic-matrix structural composite material, and a...
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5936771 |
Compact flir optical configuration
A FLIR system having a refractive FLIR optical configuration including a substantially spherical housing and an optical window disposed in and extending to the outer housing surface. The window...
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5864131 |
System and method for accurate geolocation of images
A satellite-based imaging system (100) is used to provide imaging services to users located anywhere on the earth. The surface of the earth is imaged, and the resulting images are geolocated using...
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5821526 |
Star scanning method for determining the line of sight of an electro-optical instrument
A method for determining the line of sight of an electro-optical device mounted in a spacecraft such as a satellite. The electro-optical device includes an electo-optical element that detects...
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5815590 |
Target light detection
A method of determining the existence of a target light source comprising progressively receiving successive pixel intensity values row by row and column by column of a scanned array of a light...
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