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.

Electrically controlled broadband group antenna

Abstract: A broadband group antenna, comprising a plurality of antenna elements (3) and an earth plane element (2), wherein the antenna elements (3) are arranged in a common plane on top of the earth plane element (2) and connected to a microwave transceiver unit (11) via conductors provided in channels that extend through the earth plane element (2) in a direction perpendicular to a main extension plane of the earth plane element (2), the antenna elements(3) are arranged in a matrix pattern comprising first rows (14) extending in a first direction (y) and second rows (15) extending in a second direction (x) perpendicular to said first direction (y), wherein the antenna elements (3) are in alignment with each other in said first rows (14) and in said second rows (15).First and second channels (13) via which the first and second conductors (10', 10'') of each of said plurality of antenna elements (3)of said one first row (14) are configured to be connected to a microwave transceiver unit (11)are in alignment along a line parallel with said first direction (y).

ForSyDe-Atom: Taming Complexity in Cyber Physical System Design with Layers

Abstract: We present ForSyDe-Atom, a formal framework intended as an entry point for disciplined design of complex cyber-physical systems. This framework provides a set of rules for combining several domain-specific languages as structured, enclosing layers to orthogonalize the many aspects of system behavior, yet study their interaction in tandem. We define four layers: one for capturing timed interactions in heterogeneous systems, one for structured parallelism, one for modeling uncertainty, and one for describing component properties. This framework enables a systematic exploitation of design properties in a design flow by facilitating the stepwise projection of certain layers of interest, the isolated analysis and refinement on projections, and the seamless reconstruction of a system model by virtue of orthogonalization. We demonstrate the capabilities of this approach by providing a compact yet expressive model of an active electronically scanned array antenna and signal processing chain, simulate it, validate its conformity with the design specifications, refine it, synthesize a sub-system to VHDL and sequential code, and co-simulate the generated artifacts.

A device and a method for releasably holding two articles together

Abstract: A device for releasably holding two machine articles (1, 2) together in a mutually fixed position comprises lug portions (6, 9) with openings having surfaces to be aligned with each other for defining said fixed position with respect to two dimensions and surfaces arranged to bear against each other for defining said position in a third dimension. The device further comprises a tool (20) adapted to be introduced through the openings of adjacent lug portions and press them into said alignment and said surfaces to bear under pretension against each other for holding the articles in a mutually fixed position.

System, computer program product and method for adjusting gain in a control system

Abstract: The present invention relates to a method for adjusting angle of attack feedback gain (KDALFD) based characteristics and position of mounted stores, and a control system using said method.