Abstract:
Described are systems and methods for drone interdiction. A target aircraft is detected based on data from one or more of one or more radars, a fixed camera image from one or more fixed cameras, and an interceptor aircraft image from a camera mounted to an interceptor aircraft. An interception location is generated describing where the interceptor aircraft and the target aircraft are expected to meet. The interceptor aircraft is directed to the interception location to immobilize the target aircraft.
Abstract:
The present invention relates to electro-optic guided missile systems and, in particular, it concerns systems and methods providing enhanced navigation capabilities based on ego-motion processing of seeker images. The missile system comprising: a missile;a seeker located at a nose portion of said missile, said seeker comprising an electro-optic imaging sensor; and a control arrangement for steering the missile along a flight path to a target, characterized in that the missile system further comprises: a navigation subsystem receiving images from said imaging sensor, said navigation subsystem being configured to: co-process a plurality of said images from said imaging sensor to derive ego-motion of said missile relative to a region viewed by said imaging sensor;derive from said ego-motion a calculated target direction from said missile to a target.
Abstract:
Die Erfindung geht aus von einem Verfahren zum Erfassen eines Ziels (8) durch einen von einer Trägerplattform (4) gehaltenen Flugkörper (2) mit einem Suchkopf, bei dem das Ziel (8) anvisiert wird und Zieldaten an ein Suchersystem (12) des Flugkörpers (2) übergeben werden. Es wird vorgeschlagen, dass das Suchersystem (12) des Flugkörpers (2) das Ziel (8 als solches anhand der übergebenen Zieldaten erfasst während dem Suchkopf die Sicht auf das Ziel (8) versperrt ist. Das Ziel kann durch den noch in der Trägerplattform verborgenen Flugkörper erfasst werden, ohne dass auf eine gute Tarnungseigenschaft der Trägerplattform verzichtet werden muss.
Abstract:
A reflector (38) includes a mirrored surface (48) and a frequency selective surface (46). The frequency selective surface (46) is arranged to reflect radiation of a first frequency band (52) and allow radiation of a second frequency band (50) to pass. The mirrored surface (48) is arranged to reflect radiation of the second frequency band (50). In this manner, the focal power for radiation of the first frequency band (52) is independent to the focal power for radiation of the second frequency band (50). Accordingly, the design of optical components associated with the second frequency band50can be undertaken independently of those associated with the first frequency band (52) so as to achieve the optimised focusing for each frequency band.
Abstract:
An optical imaging system is provided for an airborne platform or the like, including an image acquisition unit having an optical axis and configured for providing images in a direction along said axis, the image acquisition unit being mounted to a pointing mechanism configured for selectively pointing said optical axis in a desired direction. The system also has an optical shield configured for shielding said image acquisition unit from receiving undesired electromagnetic radiation from at least one direction different from said desired direction.
Abstract:
A multi-stage missile with plural stages adapted to be physically coupled to and decoupled from adjacent stages and a processor disposed on a single stage for controlling each stage thereof. In the illustrative embodiment, the processor includes a field programmable gate array. In the illustrative embodiment, the processor is disposed on stage 4 of a four-stage missile and performs guidance and navigation functions for each stage and control functions for stages 2, 3 and 4. In a specific embodiment, a serial bus interface is included for coupling the processor to electronic circuitry on each of the stages of the missile. In the best mode, the interface is an IEEE 1394b interface with a physical layer interface and a link layer interface.
Abstract:
A method of reducing an amount of fixed pattern noise from an image signal generated by an image sensor (12). The method includes, for each operational pixel in the image signal, applying a recursively updated offset term to generate a corrected image signal. The offset correction terms are recursively updated by spatially filtering the corrected image signal for a current frame of the image signal; comparing the filtered corrected image signal of the current frame with a spatially filtered corrected image signal of a preceding frame of the image signal; and updating the offset correction terms with terms generated as a function of the comparison.
Abstract:
Procédé de guidage d'une roquette (1) sur une cible, dans lequel, la roquette (1) étant équipée de moyens d'auto-guidage à dispositif d'imagerie (10) et moyens de correction de trajectoire (11), - on acquiert la cible par un dispositif de visée et on détermine sa position, - on harmonise le dispositif de visée et le dispositif d'imagerie (10) de la roquette, - on stabilise les images du dispositif d'imagerie (10) de la roquette, - on élabore une loi de guidage, - on lance la roquette (1) et on guide la roquette selon celle loi jusqu'à ce qu'elle acquiert elle-même la cible.
Abstract:
A robotically controlled steerable gimbal (30) mounted virtual broadband hyperspectral sensor (40) system and methods provide a highly mobile, rapidly responsive and innovative system of locating targets and exploiting hyperspectral and ultraspectral imaging and non-imaging signature information in real-time from an aircraft or ground vehicles (V) from overhead or standoff perspective in order to discriminate and identify unique spectral characteristics of the target. The system preferably has one or more mechanically integrated hyperspectral sensors (40) installed on a gimbal backbone and coboresighted with a similarly optional mounted color video camera and optional LASER (47) within an aerodynamically stable pod shell constructed for three-dimensional stabilization and pointing of the sensor on a direct overhead or off-nadir basis.
Abstract:
A sensor system includes a sensor, and an optical train adjustable to provide an optical beam to the sensor from a selected line of sight that may be varied. The optical train includes a wavefront error-introducing element in the optical train, which introduces a wavefront error that is a function of the selected line of sight. There is further a rigid-body wavefront error-correcting element in the optical train. The rigid-body wavefront error-correcting element has a spatially dependent correction structure with the nature of the correction being a function of the selected line of sight. The adjustment of the optical train to the selected line of sight moves the optical beam to the appropriate location of the rigid-body wavefront error-correcting element to correct for the corresponding introduced wavefront error of the wavefront error-introducing element at that selected line of sight.