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公开(公告)号：US20220398294A1
公开(公告)日：2022-12-15
申请号：US17835343
申请日：2022-06-08
Applicant: SAAB AB
Inventor： Torbjörn Löfgren
IPC: G06F17/13
Abstract: The present disclosure relates to a computer-implemented method for object tracking, the method including the steps of defining a state-space of interest based on a class of objects subject to tracking. Further, the method includes the step of representing the state-space of interest using a FEM representation partitioning the state-space of interest in elements. Further, the method includes initiating a state-space distribution defining a probability density for different states of at least one tracked object in the state-space of interest. Moreover, the method updates the state-space distribution based on evidence, wherein the evidence being at least one of sensor data and external data of at least one tracked object in said class of objects. Furthermore, the method propagates the state-space distribution of the at least one tracked object for a time period.
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公开(公告)号：US20220360074A1
公开(公告)日：2022-11-10
申请号：US17621390
申请日：2019-06-28
Applicant: SAAB AB
Inventor： Valter NILSSON , Theodor HASSIAKIS , Ola BÅÅTH
Abstract: The invention relates to a method and a system for providing current from a DC power supply to pulsed loads in an array. The array comprises at least two electronic units. Each electronic unit comprises a regulator connected to an energy storage, to a pulsed load and to a charge control unit. The charge control unit is arranged to control the supply of DC current to the pulsed load connected to the electronic unit. The method comprises: selecting a pulse load pattern for the pulsed loads, selecting a charge control sequence by a control system connected to the electronic units and the DC power supply, starting the selected charge control sequence, starting the pulse load pattern, providing DC current from the DC power supply to each electronic unit at different times according to the selected charge control sequence set by the charge control unit.
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公开(公告)号：US20220324587A1
公开(公告)日：2022-10-13
申请号：US17620431
申请日：2020-06-17
Applicant: SAAB AB
Inventor： Anna-Karin HOLMER , Johan ZANDEN , Stefan ANDERSSON
Abstract: The present disclosure relates to a landing assistance system and method (100) for assisting an airborne vehicle (1) during landing on a landing area (2). The landing assistance system (100) provides the airborne vehicle (1) with light signals. The landing assistance system comprises at least one geographically positioned light emitter (4, 6, 8) arranged at near ground level on the landing area (2). At least one first light emitter (6) of the at least one geographically positioned light emitter (4, 6, 8) is arranged to emit light to a designated position in space. The light comprises at least three light beams (B1-B3), wherein a first beam (B1) being a central beam, which indicates a designated glideslope, and at least a second beam (B2) and third beam (B3) indicating that said airborne vehicle (1) is positioned under or above the designated glideslope, respectively.
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公开(公告)号：US11286965B2
公开(公告)日：2022-03-29
申请号：US16302901
申请日：2016-05-19
Applicant: SAAB AB
Inventor： Magnus Landberg , Martin Hochwallner
Abstract: A fluid actuator arrangement comprises a piston rod member, at least two cylinders each said cylinder having a piston body, and a clamping mechanism associated to each cylinder. Each clamping mechanism is arranged to engage and disengage the piston body of the cylinder to the piston rod member. The fluid actuator arrangement comprises further a control element arranged to control a back and forward movement of the respective piston body so that forward movement is slower than the backward movement and to control the movement of the respective piston bodies in relation to each other such that at least one piston body is always moving forward and such that an overlap exists wherein at least two of the piston bodies are moving forward simultaneously during a cycle.
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公开(公告)号：US20220026177A1
公开(公告)日：2022-01-27
申请号：US17309547
申请日：2018-12-13
Applicant: SAAB AB
Inventor： Per CEDERWALL , Stefan ANDERSSON
Abstract: The invention relates to a reflector comprising a reflector cavity (110) having a front opening for receiving EMR into the reflector cavity (110) for subsequent reflection of the EMR by at least one reflector element (120) arranged within the reflector cavity (110), characterized in that the reflector further comprises a front cover (130) that has high EM R transmittance in at least parts of the EM spectrum, the front cover (130) being arranged to cover the front opening of the reflector cavity (110), and that the front cover (130) and front opening form a gastight seal (140) impermeable to gas to prevent transport of material into and out of the reflector cavity (110) through the front opening.
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Patent Agency Ranking
公开(公告)号：US20210389419A1
公开(公告)日：2021-12-16
申请号：US17287567
申请日：2018-10-25
Applicant: SAAB AB
Inventor： Kent FALK
Abstract: A radar system and method for maintaining radar performance of radar system in jammed environment are provided. The radar system has a main antenna arrangement for transmitting and/or receiving electromagnetic waves. Main antenna arrangement includes at least one main antenna element and at least one main electronics module for transmitting and/or receiving signals to/from at least one main antenna element. The system has auxiliary antenna arrangement for transmitting and/or receiving electromagnetic waves, auxiliary antenna arrangement includes at least one auxiliary antenna element and at least one auxiliary electronics module for transmitting and/or receiving signals to/from the at least one auxiliary antenna element. System has a controller connected to main antenna arrangement and to auxiliary antenna arrangement. Controller is configured to transmit first radar waveform from main antenna element, and transmit second radar waveform from auxiliary antenna element.
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公开(公告)号：US11148774B2
公开(公告)日：2021-10-19
申请号：US16471988
申请日：2016-12-23
Applicant: SAAB AB
Inventor： Olle Axelsson , Nicklas Johansson , Feras Faez Elias
Abstract: A rebalancing device for rebalancing of an underwater vehicle comprises at least one thruster and at least one storage space. The rebalancing device comprises control circuitry. The control circuitry is configured to receive sensor data comprising information relating to a depth and an attitude of the underwater vehicle, and thruster data comprising information relating to thrust and orientation of thrust of the at least one thruster. The control circuitry is further configured to determine a difference between a centre of gravity, CoG, of the underwater vehicle and a centre of buoyancy, CoB, of the underwater vehicle based on the sensor data and the thruster data, and to determine a difference between a gravitational force acting on the underwater vehicle and a buoyancy of the underwater vehicle based on the sensor data and the thruster data.
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公开(公告)号：US11121471B2
公开(公告)日：2021-09-14
申请号：US16961977
申请日：2018-01-18
Applicant: SAAB AB
Inventor： Ola Forslund
Abstract: The invention relates to an antenna. The antenna comprises a feed line having first and second ends on opposite sides of the feed line, wherein a transmission axis is defined as the axis extending between the first and second ends of the feed line. Further, the antenna comprises a plurality of antenna elements arranged along the feed line, protruding from the transmission axis. The antenna also comprises a first port at the first end of the feed line, wherein, at a first part of the antenna, the feed line, from the first port towards a reference point along the transmission axis, comprises antenna elements of gradually increasing length, configured to radiate in a first direction along the transmission axis from the reference point towards the first port during excitation in the first port. Yet further, the antenna comprises a second port at the second end of the feed line, wherein, at a second part of the antenna, the feed line, from the second port towards the reference point along the transmission axis, comprises antenna elements of gradually increasing length, configured to radiate in a second direction along the transmission axis from the reference point towards the second port during excitation in the second port.
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公开(公告)号：US11054206B2
公开(公告)日：2021-07-06
申请号：US16609780
申请日：2018-04-27
Applicant: SAAB AB
Inventor： Emil Tjus , Per Jansson
Abstract: The present invention relates to an arrangement for aligning a sub-calibre barrel (1) for use in a principal weapon barrel comprising i) an insert (4) arranged in said principal weapon barrel ii) front securing means (8) for aligning the sub-calibre barrel (1) iii) rear securing means for securing the rear end of the sub-calibre barrel (1), wherein iii.a) said rear securing means comprise a barrel nut (2) in which said sub-calibre barrel (1) is inserted; iii.b) clamping means (3a, 3b) securing said barrel nut (2) to said insert (4) and said clamping means (3a, 3b) in said principal weapon barrel. The invention also relates to a training weapon comprising the arrangement and a method of aligning the training weapon.
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公开(公告)号：US11030134B2
公开(公告)日：2021-06-08
申请号：US16489483
申请日：2018-02-26
Applicant: SAAB AB
Inventor： Stefan Hagdahl , Austin Mahoney , Mikael Johansson , Anders Gunnar , Jayedur Rashid
Abstract: A communication controller, a method and a node agent is disclosed, The communication controller comprising: a data transmission port configured to be connected to corresponding logical channels; an application port configured to provide data to or from corresponding applications; a node agent having node control data comprising at least one trained machine learning model, configured to: monitor performance characteristics for data inflow to a data transmission port; monitor an at least one local observable; control the connection between the data transmission port and another data transmission port causing outflow of data, or between the data transmission port and the application port, causing inflow of data if the application port receives data, and outflow of data if the application port sends data; control the connection between the transmission ports and the application ports based on the monitored performance characteristics, the at least one local observable, the at least one trained machine learning model and a local policy matrix.
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