Institution
Saab AB
Company•Thun, Switzerland•
About: Saab AB is a company organization based out in Thun, Switzerland. It is known for research contribution in the topics: Antenna (radio) & Signal. The organization has 862 authors who have published 928 publications receiving 8807 citations. The organization is also known as: Saab AB & Svenska Aeroplan AB.
Topics: Antenna (radio), Signal, Radar, Radar imaging, Antenna rotator
Papers published on a yearly basis
Papers
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04 Apr 2019TL;DR: In this article, a method for determining a synthetic aperture of a 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, is presented.
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.
1 citations
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10 Oct 2006TL;DR: In this article, a female molding tool is used to produce composite material and a form bag is placed in the female tool so that the bag seals towards the heel shaped tool part, in such a way that, at a later air evacuation of the bag, an increased pressure that will apply towards the laminate reaches a radius before the pressure reaches an edge.
Abstract: A method for producing an article of composite material. A female molding tool is provided. A form bag is provided. At least one prepreg is placed in the molding tool. A heel shaped hard tool part. A hard tool part is placed at the female tool close to an edge of the laminate being placed in the mold. The form bag is placed in the female tool so that the bag seals towards the heel shaped tool part, in such a way that, at a later air evacuation of the bag, an increased pressure that the bag will apply towards the laminate reaches a radius before the pressure reaches an edge.
1 citations
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24 Mar 2011TL;DR: In this paper, a signal-directing means for dividing or combining signals is presented. But it is not shown how to use it in the context of signal-to-noise communication.
Abstract: The present invention relates to a signal directing means for dividing or combining signals. It comprises a bottom row first port, a first row first and second port, and a bottom row signal connector. The signal directing means further comprises a first row first and second amplifier, each first row amplifier having a corresponding first and second terminal, said first terminals being connected along the bottom row signal connector. The signal directing means also comprises a first row signal connector, where said second terminals are connected along the first row signal connector. The second terminal of the first row first amplifier is connected to the first row first port and the second terminal of the first row second amplifier is connected to the first row second port. A plurality of second connector ports are also provided, with connecting impedances connecting between the respective ports.
1 citations
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14 Jun 2013TL;DR: In this paper, a variable exhaust nozzle (14) for a jet engine (1), the nozzle comprises an upstream portion (16), flap means (18) being pivotally connectable to the jet engine via the upstream portion, the flap means(18) com- prises a downstream portion forming a downstream linear edge (19'), actuator means (20, 20h, 24) being arranged to actuate said flap means for variation of the nozzles cross sectional area (A1, A2) between a first position and a second position.
Abstract: The present invention relates to a variable exhaust nozzle (14) for a jet engine (1), the nozzle (14) comprises an upstream portion (16), flap means (18) being pivotally connectable to the jet engine (1) via the upstream portion (16), the flap means (18) com- prises a downstream portion (16´) forming a downstream linear edge (19'), actuator means (20, 20h, 24) being arranged to actuate said flap means (18) for variation of the nozzles (14) cross sectional area (A1, A2) between a first position and a second position. Said flap means (18) is skewed. The nozzle (14) comprises shape forming flap means (24, 62) for forming the cross sectional area (A1, A2), and adjacent flap means (24, 26, 27, 28) having sliding surfaces (22, 22') in continuous contact during said variation. The present invention also relates to method for varying a variable exhaust nozzle (14) for a jet engine (1).
1 citations
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16 Dec 2009TL;DR: In this article, a high power electrical distribution system for distribution high power to at least one consumer arranged on a rotatable element is described. But the rotary power transformer includes a stationary part and a rotating part and is configured to receive high frequency alternating current (HFAC) from the generator and to couple HFAC electrical energy from the stationary part to the rotatable part.
Abstract: A high power electrical distribution system for distribution high power to at least one consumer arranged on a rotatable element. The distribution system includes at least one high frequency alternating current HFAC generator configured to generate HFAC. A rotary power transformer is connected to the at least one HFAC generator. The rotary power transformer includes a stationary part and a rotatable part and is configured to receive HFAC from the at least one HFAC generator and to couple HFAC electrical energy from the stationary part to the rotatable part. At least one high power distribution bus is located on the rotatable element and is configured to receive HFAC from the rotary power transformer and to distribute HFAC to the at least one consumer.
1 citations
Authors
Showing all 863 results
Name | H-index | Papers | Citations |
---|---|---|---|
Christer Larsson | 64 | 272 | 12916 |
Brian L. Wardle | 48 | 281 | 9394 |
Per Karlsson | 47 | 191 | 9697 |
Torbjörn Wigren | 30 | 281 | 3996 |
Per Lötstedt | 28 | 109 | 2960 |
Bengt Andersson | 27 | 92 | 2171 |
Carl Gustafson | 17 | 34 | 1035 |
Jan Torin | 15 | 41 | 902 |
Per-Johan Nordlund | 14 | 26 | 2738 |
Mikael Petersson | 13 | 51 | 446 |
Torbjorn M.J. Nilsson | 12 | 31 | 923 |
Tonny Nyman | 12 | 25 | 546 |
Kristian Amadori | 12 | 28 | 419 |
Torleif Martin | 11 | 33 | 387 |
Johan Fredriksson | 11 | 28 | 446 |