Saab AB

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.

A Teamwork Model for Fighter Pilots

Abstract: Fighter pilots depend on collaboration and teamwork to perform successful air missions. However, such collaboration is challenging due to limitations in communication and the amount of data that can be shared between aircraft. In order to design future support systems for fighter pilots, this paper aims at characterizing how pilots collaborate while performing real-world missions. Our starting point is the “Big Five” model for effective teamwork, put forth by Salas et al. [1]. Fighter pilots were interviewed about their teamwork, and how they prepare and perform missions in teams. The results from the interviews were used to describe how pilots collaborate in teams, and to suggest relationships between the teamwork elements of the “Big Five” model for fighter pilots performing missions. The results presented in this paper are intended to inform designers and developers of cockpit displays, data links and decision support systems for fighter aircraft.

Surface mounted broadband element

Abstract: The disclosed subject matter concerns an antenna (10) which comprises a ground plane (15) and at least a first and a second antenna element (11, 12). Each antenna element comprises a feed point (16), a cavity (17), a main body (20), a tip (23) and at least a first tapered portion (21) and a second tapered portion (22). Each antenna element (11, 12) is arranged on the ground plane (15), where said first and second tapered portions (21, 22) extend along the antenna element (11, 12) from said tip (23) towards the ground plane (15) of the antenna element (11, 12), and where each antenna element (11, 12) extends essentially perpendicularly to said ground plane (15) along a centre axis (50) of the antenna element. Each antenna element (11, 12) has at least a first leg (31) and a second leg (32), where said first leg (31) extends from said main body (20) to the first feed point (16), where said feed point (16) is located between the first leg (31) and the ground plane (15), and where said second leg (32) extends from said main body (20) to the ground plane (15), and where said second leg (32) is electrically connected to the ground plane (15).

A pyrotechnic countermeasure dispensing system

Abstract: The present invention regards a pyrotechnic countermeasure (15, 25) dispensing system (1) comprising a set of contacting members (27, 27') of a launching electronic circuitry (19). A first magazine (A) is mountable in said housing (23) in such way that a contacting body (41) of each pyrotechnic countermeasure (25) being in electrical communication with a dedicated contacting member (27) of the launching electronic circuitry (19), when the system (1) is ready to use. A central electronic unit (3) is associated with the launching electronic circuitry (19) for actuating of the pyrotechnic countermeasure (25) accommodated in the first magazine (A) in dependence upon a detected threat (29). A second magazine (B) designed for accommodation of at least one intelligent pyrotechnic countermeasure (15) is mountable in contact with the launching electronic circuitry (19) so that a contacting body (41) of said intelligent pyrotechnic countermeasure (15) will be set in electrical communication with a dedicated contacting member (27) of the launching electronic circuitry (19) via an adapter device (33, 33', 34).

Method of attaching elements by bonding

Abstract: The present invention relates to a method of attaching a first portion and a second portion to each other, wherein the method comprises - exposing an adhesive for a low temperature in order to obtain a non-tacky adhesive, - arranging the non-tacky adhesive between the two portions, and - curing the adhesive. Further, the present invention relates to the use of adhesive according to the method.

Track-to-track association in decentralized tracking systems with feedback

Abstract: In air combat, information advantage over the opponent is vital for the success of the operation. For that reason, modern fighter aircraft have extensive sensor suites to track other objects. In order to form a unified picture of the vicinity; all sensor information is fused. Since system modularity and high computational performance are key issues in the application, a decentralized tracking approach, where the information from the decentralized trackers is fused in a central node, is preferable. Furthermore, in order to improve the sensor tracking performance, it is often desired to feed back information to the sensors from the central node. In this paper, track-to-track association in such a decentralized tracking system with feedback is addressed. The central fusion node has to associate the sensor tracks to each other to be able to fuse them. In a system without feedback, the track-to-track association algorithm bases its conclusions on the assumption that the estimation errors of the tracks from different local trackers are not correlated. However, when information is fed back to the local trackers, this assumption is not valid, since the sensor tracks then consist of common information. System configurations that deal with this problem are proposed and tested in a fighter aircraft application. One approach is to extract the uncorrelated information from the sensor data and use that in the association process. Another approach is to keep parallel trackers in the sensors that only contain the local sensor information. Both approaches produce sensor tracks that contain the same information as the sensor tracks in a system without feedback. Also, a track-to-track association algorithm that recursively uses information from multiple time steps is proposed. The use of multiple time step data separates it from conventional track-to-track association algorithms that mostly use only current information. The result is an algorithm that improves the performance and gives a more stable solution.