A METHOD, SOFTWARE PRODUCT, AND SYSTEM FOR DETERMINING A POSITION AND ORIENTATION IN A 3D RECONSTRUCTION OF THE EARTH'S SURFACE

    公开(公告)号:US20240085186A1

    公开(公告)日:2024-03-14

    申请号:US18553806

    申请日:2022-04-12

    Applicant: SAAB AB

    Inventor: Viktor RINGDAHL

    Abstract: The present disclosure relates to a method for determining a position and an orientation. The method (300) comprises the steps of obtaining (310) sensor data (210) comprising a plurality of images of Earth's surface from at least one calibrated camera; forming (320) a 3D reconstruction (220) of a part of Earth's surface based on obtained sensor data (210); obtaining (330) from a data storage (250), source data (260) indicative of a region comprising at least said part of Earth's surface, wherein said source data (260) comprises a source digital surface model, DSM, (270) for said region, and an orthophoto (280) of said region; determining (340a) a sensor DSM (230) of the 3D reconstruction (220) and a sensor texture (240) of the 3D reconstruction (220) based on the 3D reconstruction (220); matching (350) the sensor DSM (230) and the sensor texture (240) with the source DSM (270) and the orthophoto (280); and determining (360) the position and the orientation of the 3D reconstruction (220) based on the matching (350) of the sensor DSM (230) and the sensor texture (240) with the source DSM (270) and the orthophoto (280).

    Method of combusting aluminium and system therefor

    公开(公告)号:US11897782B2

    公开(公告)日:2024-02-13

    申请号:US16641688

    申请日:2018-08-20

    Applicant: SAAB AB

    Inventor: Ulf Bengtsson

    Abstract: A system and method of combusting aluminium comprising i) feeding aluminium wire to a substantially oxygen-free furnace comprising a. a first low-temperature section in communication with b. a second high-temperature section ii) forming aluminium particles with an average particle size ranging from 1 μm to 200 μm from said aluminium wire in said first section iii) feeding water and/or steam to said first and/or second section to provide an oxidizer for oxidizing said aluminium particles in the second section iv) conveying aluminium particles from the first section to the second section v) oxidizing said aluminium particles in the presence of steam in said second section.

    A CAMOUFLAGE TAPE, AND CAMOUFLAGE TAPE SYSTEM FOR TEMPORARY MULTISPECTRAL CAMOUFLAGE OF OBJECTS

    公开(公告)号:US20230407139A1

    公开(公告)日:2023-12-21

    申请号:US18248534

    申请日:2021-10-13

    Applicant: SAAB AB

    Inventor: Johan JERSBLAD

    Abstract: The present disclosure relates to a multispectral camouflage tape for temporary multispectral camouflage of objects, such as weapons or military, comprising a camouflage material layer having camouflage properties in the visual and thermal infrared wavelength regions, the camouflage material layer including a textile and a thermal-radiation reflecting material; a tape layer including a tape substrate having an inward-facing side coated with an inner adhesive layer; and a releasable liner layer releasably adhered to the inward-facing side of the tape substrate through the inner adhesive layer, wherein the camouflage material layer is adhered to the tape substrate such that the camouflage material layer and the tape layer form a tape configured to adhered to an object by the inner adhesive layer at an inward-facing side of the tape substrate.

    Dispenser and method for launching countermeasures

    公开(公告)号:US11845552B2

    公开(公告)日:2023-12-19

    申请号:US17612644

    申请日:2020-06-02

    Applicant: SAAB AB

    CPC classification number: B64D1/02 F41H11/02 F42B12/70

    Abstract: A dispenser for storing and launching countermeasures, where the dispenser is adapted for storing the countermeasures in a magazine, where the dispenser is provided with at least one launch opening and where the dispenser is adapted to be mounted on an aircraft, where the dispenser includes a body, a bracket and a magazine housing, where the bracket is rotatable with respect to the body and where magazine housing is rotatable with respect to the bracket, where the magazine housing includes a storage space adapted to hold the magazine, and where the launch opening is arranged in the magazine housing. The invention also includes a method for rotating the magazine and launching a countermeasure. The advantage of the invention is that a countermeasure can be directed in a desired angle before it is launched.

    A NOTCH ANTENNA STRUCTURE
    275.
    发明公开

    公开(公告)号:US20230318191A1

    公开(公告)日:2023-10-05

    申请号:US18042224

    申请日:2021-08-23

    Applicant: SAAB AB

    CPC classification number: H01Q13/085 H01Q21/0025

    Abstract: The present disclosure relates to a notch antenna structure including a plurality of notch antenna elements arranged in at least a first row (R). Each notch antenna element includes a base portion having first and second opposing surfaces, a first electrically conductive body and an adjacent second electrically conductive body, the electrically conductive bodies extending vertically from the first surface, forming an integral structure, a tapering gap between the two electrically conductive bodies. The notch antenna structure includes a bottom plane for receiving the second surface of the plurality of notch antenna elements and the first electrically conductive body includes a leg portion having a feed arrangement proximate to the tapering gap, the feed arrangement including a feed point.

    SPRING ARRANGEMENT FOR COUNTERMEASURE MAGAZINES

    公开(公告)号:US20230296338A1

    公开(公告)日:2023-09-21

    申请号:US18041596

    申请日:2021-08-18

    Applicant: SAAB AB

    Inventor: Richard SUNDBERG

    CPC classification number: F41A9/64

    Abstract: The present invention relates to a spring arrangement for use in a countermeasure magazine, said spring arrangement including a plurality of elements, wherein each one of said elements has a base portion and a plurality of spring portions extending from a first edge of said base portion, and wherein said spring portions of each element are distributed along a length of said base portion, and wherein said elements include mating connection means such that said elements may be connected to each other.

    Method, software product, device and system for integrating images

    公开(公告)号:US11727092B2

    公开(公告)日:2023-08-15

    申请号:US17297694

    申请日:2018-11-28

    Applicant: SAAB AB

    CPC classification number: G06F18/25 G06V10/10 G06V20/13 G06V10/16

    Abstract: The invention relates to a method for image integration (100), said method comprising the steps of acquiring at least two overlapping images (110) having different properties, and forming at least one integrated image (170) based on the overlapping images (110), wherein the step of forming at least one integrated image (170) comprises generating at least one score map (130) for each acquired overlapping image (110) relating to locally salient features of said overlapping image (110), forming an integration map (150) based on the at least one score map (130) of the at least two overlapping images (110), and integrating the at least two overlapping images (110) based on the integration map (150) to form an integrated image (170).

    Methods, computer programs, radar systems, antenna systems, and flying platforms for detecting a horizontally buried linear object

    公开(公告)号:US11726199B2

    公开(公告)日:2023-08-15

    申请号:US16979093

    申请日:2019-03-08

    Applicant: SAAB AB

    Inventor: Hans Hellsten

    Abstract: A method for detecting a horizontally buried linear object is provided, the horizontally buried linear object having a longitudinal extension. The method comprises moving, with a flying platform comprising a radar for synthetic aperture radar, SAR, vertical imaging, along a trajectory corresponding to a synthetic aperture. The method further comprises transmitting and receiving radar signals while moving along the trajectory corresponding to the synthetic aperture. The method also comprises forming a SAR image based on collected data representing radar signal reflections received from the ground. The method additionally comprises detecting one or more features in the formed SAR image relating to the horizontally buried linear object. Said trajectory is oriented in a direction substantially perpendicular to an expected orientation of the longitudinal extension of the horizontally buried object and traversing the horizontally buried object.

    NOTCH ANTENNA ARRAY
    279.
    发明申请

    公开(公告)号:US20230081591A1

    公开(公告)日:2023-03-16

    申请号:US17799696

    申请日:2020-02-19

    Applicant: SAAB AB

    Abstract: An antenna array is provided. The antenna array includes a plurality of M row antenna structures, each row antenna structure forming a row in the antenna array, M being a positive integer≥2, and a plurality of N column antenna structures, each column antenna structure forming a column in the antenna array, N being a positive integer≥2. Each row antenna structure includes a plurality of row antenna elements, where each row antenna element includes a main body tapering from a bottom portion to a tip portion. The bottom portion of each row antenna element includes a first leg portion having a first feed arrangement, and wherein each row antenna element is joined to at least one adjacent row antenna element so to form a conjoined row of notch antennas.

    Delay unit for a projectile
    280.
    发明授权

    公开(公告)号:US11598619B2

    公开(公告)日:2023-03-07

    申请号:US17312586

    申请日:2019-12-12

    Applicant: SAAB AB

    Abstract: The invention relates to a method of delaying a mechanism in a firearm and a delay unit for a projectile comprising i) a first and a second pressure chamber (3a, 3b) arranged to receive combustion gases in a firearm via at least one inlet (1a, 1b) arranged to each of said first and second pressure chambers (3a, 3b) following firing of a projectile ii) at least one outlet for transferring the combustion gases (4a, 4b), arranged to each of said first and second pressure chambers (3a, 3b), to a piston chamber in which a displaceable piston (6) is arranged dividing the piston chamber into a compartment (5b) having a volume V1 upstream the piston (6) and a compartment (5a) having a volume V2 downstream the piston (6), wherein said at least one outlet (4a, 4b) from the first and second pressure chambers (3a, 3b) are arranged to transfer said combustion gases to said compartments (5a, b) of said piston chamber to provide an overall pressure difference between compartments (5a) and (5b) pressing the piston (6) at an initial idle position downstream whereby the volume V2 of compartment (5a) is reduced and whereby the piston (6) being pressed downstream towards an end position actuates a function at a predetermined point in time following firing of a firearm.

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