公开(公告)号：US10928147B2

公开(公告)日：2021-02-23

申请号：US16469299

申请日：2017-12-08

Applicant: SAAB AB

Inventor： Mathias Lindstroem

IPC: F41A1/10 ,  F42B5/05 ,  F42B5/10

Abstract: The invention relates to a method for launching a projectile and a launcher comprising a barrel (1) accommodating a. a projectile (2); b. a rocket motor (13) at the rear end of the projectile (2) comprising a first compartment containing a first propellant; c. a countermass (3) at the rear end of the barrel (1); and d. a second compartment between the rocket motor (13) and the countermass (3) containing a second propellant, wherein said first and second compartments form a high pressure chamber (6) subsequent to firing of the projectile (2).

公开(公告)号：US20200321683A1

公开(公告)日：2020-10-08

申请号：US16652918

申请日：2017-10-04

Applicant: SAAB AB

Inventor： Johan OESTBERG ,  Omar ISAKSSON

IPC: H01Q1/18 ,  H01Q1/12 ,  H01Q1/08 ,  H01Q3/02 ,  H01Q1/27

Abstract: The present invention regards a platform and elevation support arrangement (1) and a method for manufacture thereof. An elevation support (3) is to be hingedly mounted to a platform (5) around a first axis (X1) extending along a first direction (B1) via a hinge member (7) arranged between the platform (5) and the elevation support (3); and wherein the elevation support (3) is configured to be locked to the platform (5) in a fixed position by means of an adjustable locking mechanism (9), comprising a first and a second opening (11′, 11″) arranged at a first distance (D1) from each other and comprising a first and second sliding shaft element (13′, 13″) arranged at a second distance (D2) from each other each configured to slide along a second direction (B2) perpendicular to the first axis (X1). The method comprises the steps of providing the platform (5), the elevation support (3) and the adjustable locking mechanism (9); mounting the elevation support (3) to the platform (5); adjusting the adjustable locking mechanism (9) so that the first distance (D1) corresponds with the second distance (D2); and locking the adjustable locking mechanism (9) by sliding the first shaft element (13′) into the first opening (11′) and by sliding the second shaft element (13″) into the second opening (11″).

公开(公告)号：US10788587B2

公开(公告)日：2020-09-29

申请号：US16648314

申请日：2018-09-19

Applicant: SAAB AB

Inventor： Patrik Dammert ,  Hans Hellsten

IPC: G01S19/22 ,  G01S19/30 ,  G01S13/90 ,  G01S19/25 ,  G01S19/37

Abstract: The present invention relates to a method for determining a synthetic aperture of a synthetic aperture radar, SAR, system using information from a global navigation satellite system, GNSS, which includes a plurality of satellites each transmitting a radio frequency signal comprising a unique pseudo random number, PRN. The method comprises: receiving the radio frequency signal from a group of satellites in the GNSS, determining a first maximum correlation peak of the PRN of the received radio frequency signal from each satellite in the group of satellites, determining the phase shift between the first determined maximum correlation peak and a second determined maximum correlation peak of a received PRN from the same satellite at a later time, for each satellite in the group of satellites, determining a line-of-sight, LOS, movement of the SAR system relative each of the satellites in the group of satellites by means of the determined phase shift for each satellite in the group of satellites, and determining a synthetic aperture using the LOS movement relative each satellite in the group of satellites.

公开(公告)号：US10746862B2

公开(公告)日：2020-08-18

申请号：US16483069

申请日：2018-02-05

Applicant: SAAB AB

Inventor： Patrik Dammert ,  Hans Hellsten

IPC: G01S13/32 ,  G01S7/02 ,  G01S13/931 ,  G01S7/35

Abstract: The present invention relates to a method for a continuous arbitrary waveform radar configured for transmitting and receiving signals over a selected communication band. The method comprises: generating the radar transmit signal with a waveform having a non-monotonic frequency change, modifying the waveform to obtain at least one spectral notch and isolating reception and transmission by cancellation. Each spectral notch at a selectable frequency with a selectable bandwidth, and the waveform is modified to maintain the spectral density of the transmit radar signal.

公开(公告)号：US20200257880A1

公开(公告)日：2020-08-13

申请号：US16642862

申请日：2017-08-31

Applicant: SAAB AB

Inventor： Fredrik DICANDER

IPC: G06K9/00

Abstract: A sensor surveillance system (100) and a method for determining possible geographic positions of at least one assumed undetected target (1a-n) within a geographic volume of interest (200) is provided, wherein for a first point in time ti the following steps are performed: dividing the geographic volume of interest (200) into sections (10); assuming the existence of an assumed undetected target (1a-n) at a geographic position within each section (10); and initiating the creation of a pattern (2) defining at least one possible geographic position of the assumed undetected target, said pattern extends at least partially around the geographic position of the assumed undetected target (1a-n); wherein the geographic extension of said pattern is determined based on: the category of the assumed undetected target (1a-n); and the amount of time that has passed from the first point in time t1. Further, for a second point in time t2 the following steps are performed: determining geographic locations (205) within said geographic volume of interest (200) from where sensor signals show absence of targets; and removing the pattern (2) from the geographic locations (205) from where sensor signals show absence of targets.

公开(公告)号：US10539800B2

公开(公告)日：2020-01-21

申请号：US16067007

申请日：2016-01-05

Applicant: SAAB AB

Inventor： Anna-Karin Holmer ,  Johan Zanden ,  Stefan Andersson

IPC: G02B6/00 ,  G02B27/01 ,  G02B5/02 ,  G02B6/08 ,  G02C7/08

Abstract: The present disclosure relates devices and a method for monitoring a display image (2) in a transparent optical projection display. They disclose a display image monitor (1) comprising a fiber optic face plate (4) and an image sensor (5). The fiber optic face plate (4) comprises a first surface (4a) with optic fiber ends and a second surface (4b) with corresponding optic fiber ends and transfers light from the first surface (4a) to the second surface (4b) through the optic fibers, wherein the first surface abuts against a part (2a) of the display image (2) at a focused image plane (2b) and thus the light of the part of the display image enters the optic fiber ends and wherein the second surface is arranged to direct the part of the display image to the image sensor, thereby transferring the part of the display image to the image sensor.

公开(公告)号：US20190391246A1

公开(公告)日：2019-12-26

申请号：US16483069

申请日：2018-02-05

Applicant: SAAB AB

Inventor： Patrik DAMMERT ,  Hans HELLSTEN

IPC: G01S13/32 ,  G01S13/93 ,  G01S7/02

Abstract: The present invention relates to a method for a continuous arbitrary waveform radar configured for transmitting and receiving signals over a selected communication band. The method comprises: generating the radar transmit signal with a waveform having a non-monotonic frequency change, modifying the waveform to obtain at least one spectral notch and isolating reception and transmission by cancellation. Each spectral notch at a selectable frequency with a selectable bandwidth, and the waveform is modified to maintain the spectral density of the transmit radar signal.

公开(公告)号：US10483714B2

公开(公告)日：2019-11-19

申请号：US16083685

申请日：2016-03-30

Applicant: SAAB AB

Inventor： Peter Bane ,  Marcus Gustafsson

IPC: H01S3/13 ,  H01S3/136 ,  H01S3/137 ,  H01S3/131 ,  H01S3/115 ,  H01S3/117 ,  H01S3/16 ,  H01S3/17

Abstract: The present disclosure relates a laser arrangement (1) and a method of the laser arrangement, arranged to output energy in the form of laser emission, for emitting controlled Q-switched laser emission. The laser arrangement comprises a gain medium (2) arranged to be excited when pumped, an optical resonator (3), an active Q-switch (4) arranged in the optical resonator, said active Q-switch (4) being controllable between at least a high loss state and a low loss state, and being arranged to introduce loss in the optical resonator to prevent lasing in the high loss state and to affect lasing minimally in the low loss state, a photo detector (5) arranged to detect the presence of a free running pulse (1′) generated by the optical resonator and which occurs when a lasing threshold is reached and a processing circuitry (6) arranged to control (S4) of the state of the active Q-switch based on the detection of the free running pulse.

公开(公告)号：US10442502B2

公开(公告)日：2019-10-15

申请号：US16062294

申请日：2015-12-16

Applicant: SAAB AB

Inventor： Bernt Norrman

IPC: F16F3/00 ,  B63B17/00 ,  B63B3/10 ,  B63G9/00 ,  F16F15/067 ,  F16F3/04 ,  F16F3/02 ,  F16F15/04

Abstract: The present disclosure relates to a shock absorbing arrangement suitable e.g. for ship installed structures comprising a rod, a resilient member arranged in connection to the rod, a structure element and a locking member arranged in connection to the structure element. The locking member is arranged to detachably lock the structure element at a resting position at the rod and the locking member, or the structure element, is supported by the resilient member. The resilient member is configured such that a spring force of the resilient member acts to maintain the structure element essentially at the resting position at the rod. The locking member is further configured to release the structure element from the resting position when being exposed to a force exceeding a predetermined holding force, whereupon the resilient member acts to reinstate the locking of the structure element at the resting position at the rod. The present disclosure further relates to a shock absorbing structure comprising such shock absorbing arrangements.

公开(公告)号：US20190310105A1

公开(公告)日：2019-10-10

申请号：US16315209

申请日：2016-07-07

Applicant: SAAB AB

Inventor： Nigel Pippard ,  Robert Alexander Bennett ,  Jonas Dehlin ,  Adam Nilsson

IPC: G01C23/00 ,  G06T17/05 ,  G06T15/20 ,  G08G5/00 ,  B64D43/00

Abstract: The present disclosure relates to a method (300) for displaying a perspective view of the surrounding of an aircraft (100) in an aircraft. The method comprises accessing (310) surrounding information from a database. The surrounding information is photo-based and three-dimensional. The method further comprises processing (320) the accessed surrounding information so that a perspective view of the surrounding of the aircraft is provided. The perspective view of the surrounding correlates to the position of the aircraft and is photo-based with spatially correlated photo-based textures. The method further comprises transmitting (360) the provided perspective view of the surrounding of the aircraft to a displaying unit so that it can be displayed in the aircraft. The present disclosure also relates to a system, an aircraft, a use, a computer program, and a computer program product.