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.

Method and apparatus for manufacturing of an article including an empty space

Abstract: A tool assembly including a male tool including an inner shape tool including a bag having a connection connectable to a depressurization source for providing a vacuum in the bag such that beads therein form a body of firm cohesion providing the inner shape tool rigid. The male tool further includes a flexible, hollow curing support arranged around the rigid inner shape tool, the inner shape tool is arranged to be removable from the flexible, hollow curing support by rupturing the vacuum.

System for aligning a firing simulator and an aligning unit for the same

Abstract: This invention concerns a system for aligning a simulator (3) arranged for firing and mounted on a weapon. The simulator has a radiation source (8) arranged so as to emit a beam along a simulation axis, and adjusting means (10) for adjusting the simulation axis so that it is aligned with the weapon sight. The system is characterized in that it includes a sighting mark at which the weapon sight is to be aimed during alignment, and means arranged in connection with the sighting mark to emit a beam along an axis representing an aligned simulation axis. The system further includes an aligning unit (14) that is deployable at the simulator and in which at least a first part of the beam from the element (8) is reflected along an axis representing the current position of the simulation axis. Position-indicating means (18) are arranged so that the beam along the axis representing the aligned beam strikes the position-indicating means (18) at a point representing a set-point value for the simulation axis, and so that the beam along the axis representing the current simulation axis strikes the position-indicating means at a point representing an actual value for the simulation axis.

Continuous Architecture: Towards the Goldilocks Zone and Away from Vicious Circles

Abstract: This paper identifies three improvement areas related to system design and architecture, where an organization can change to better support continuous integration and continuous delivery: “The product's architecture”, “Ways to work with system design and architecture”, and “The role of the architect”. The three improvement areas are based on a literature review, two series of interviews and a cross-company workshop with three case-study companies. Furthermore, the paper proposes three actionable strategies corresponding to the three identified improvement areas: “Systems with a modular and loosely coupled architecture”, “A balanced approach where system design and architecture is focused on the system's most important characteristics”, and “Architects shifting perspective from control to facilitation”.

Achieving Low-Recovery Time in AlGaN/GaN HEMTs With AlN Interlayer Under Low- Noise Amplifiers Operation

Abstract: Three transistors with different AlGaN/GaN interface designs (sharp interface, standard interface, and an extra AlN interlayer) were studied in-depth under conditions mimicking low-noise amplifiers (LNAs) operation A new measurement setup, analog to LNAs operation condition, is established to measure recovery time on device level For the first time, a direct relationship between the recovery time and the design of AlGaN/GaN interface is revealed in devices with Carbon doping buffer in this letter An extremely low-recovery time is demonstrated in the transistor with an AlN interlayer Both transistors without an AlN interlayer exhibit severe gain and drain current degradation after pulsed input stress The transistor with a sharp interface shows a recovery time around 10 ms, whereas the transistorwith a standard interface shows even much longer recovery time These results imply that AlN interlayer, which can effectively block the injection of hot electrons to AlGaN bulk or surface traps, is highly preferred in systems where LNAs need to function promptly after an input overdrive

Combining Theorem Proving and Continuous Models in Synchronous Design

Abstract: Support for system specification in terms of modelling and simulation environments has become a common practice in safety-critical applications. Also, a current trend is the automatic code-generation, and integration with formal methods tools in terms of translators from a high level design - often using common intermediate languages. What is missing from current formal methods tools is a well-founded integration of models for different parts of a system, being software/hardware or control-intensive/data-intensive. By hardware we mean here the full range of domains in engineering systems including mechanics, hydraulics, electronics. Thus, there is a methodological gap for proving system properties from semantically well-defined descriptions of the parts. We report on the progress achieved with the European SYRF project with regard to verification of integrated analog/discrete systems. The project pursues the development of new theories, application to case studies, and tool development in parallel. We use a ventilation control system, a case study provided by Saab Aerospace, to illustrate the work in progress on how hardware and software models used by engineers can be derived, composed and analysed for satisfaction of safety and timeliness properties.