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Institution

Saab AB

CompanyThun, 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.


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Patent
Christer Regebro1
20 Oct 2004
TL;DR: In this paper, the authors present a method and a device by means of which it has been made possible, without gas discharge to the surrounding environment, to accelerate the speed of a powder-gas-driven projectile from zero to a speed which gives the projectile free-flying characteristics.
Abstract: The present invention relates to a method and a device by means of which it has been made possible, without gas discharge to the surrounding environment, to accelerate the speed of a powder-gas-driven projectile from zero to a speed which gives the projectile free-flying characteristics. According to the invention, this has been made possible by utilizing at least some of the expansion force from the propellant powder charge, which discharges gas when it is initiated, for, by a displaceable piston, driving a countermass out of the rear part of the projectile in the direction opposite to the desired flying direction of the projectile.

4 citations

Patent
06 May 2011
TL;DR: In this paper, a configurable input/output processing device is proposed to control data traffic associated to a distributed avionics control system comprising a plurality of processing nodes interconnected in a network.
Abstract: The invention pertains to a configurable input/output processing device, a method for configuring the configurable input/output processing device and a computer program product for performing the steps of the method. The configurable input/output processing device (6) is arranged to control data traffic associated to a distributed avionics control system comprising a plurality of processing nodes interconnected in a network (2), wherein each of the plurality of processing nodes is connected to the network via at least one of said configurable input/output processing device. The configurable input/output processor comprise first instructions (CCR), said first instructions comprising processing information for the at least one input/output processing device and being independent of a current configuration of the distributed avionics control system and second instructions (SCT), said second instructions being dependent on the current configuration of the distributed avionics control system.

4 citations

Patent
Ingemar Söderquist1, Rolf Loh1
22 Sep 2003
TL;DR: In this article, an event driven digital signal processor is described, which consists of a central arithmetical unit, a register, a controller, an instruction memory, and input/output devices.
Abstract: The present invention relates to an event driven digital signal processor 1 comprising: a central arithmetical unit 5 , a register 4 , a controller 3 , an instruction memory 2 , and input/output devices. The instruction memory 2 is arranged to include time performance constraints and events. An event control unit 6 is arranged to recognize an event and to control processing to be carried out as a consequence of the event while fulfilling the time performance constraints. The controller 3 is arranged to suspend processing of the time performance constraints after initiating operations in the event control unit 6 . The controller 3 resumes processing when advised by the event control unit 6.

4 citations

Proceedings Article
05 Jul 2016
TL;DR: This paper presents a batch estimation method for Simultaneous Localization and Mapping (SLAM) using the Prediction Error Method (PEM), which produces both lower RMSE's and scale better to the batch length.
Abstract: This paper presents a batch estimation method for Simultaneous Localization and Mapping (SLAM) using the Prediction Error Method (PEM). The estimation problem considers landmarks as parameter while treating dynamics using state space models. The gradient needed for parameter estimation is computed recursively using an Extended Kalman Filter (EKF). Results using simulations with a monocular camera and inertial sensors are presented and compared to a Nonlinear Least-Squares (NLS) estimator. The presented method produce both lower RMSE's and scale better to the batch length.

4 citations

Book ChapterDOI
H. Ansell1, A.F. Blom
01 Jan 2014
TL;DR: In this paper, the authors discuss the various topics that constitute building blocks within the damage-tolerant philosophy for aircraft structures and apply it to any other type of structure, i.e., design, verification, and operational management.
Abstract: Design and verification of fatigue critical components typically involve several steps, including such obvious topics as stress analysis and fatigue testing of components and structures. Various methodologies may be used, depending on safety requirements and financial aspects, but irrespective of the choice made there are certain aspects that always have to be considered. The term damage tolerance is, however, frequently abused in the sense that as soon as crack growth is being studied it has become popular to refer to damage tolerance. This is erroneous and it must be emphasized that crack growth is but one of several ingredients within the total design philosophy that is damage tolerance. This article will discuss the various topics that constitute building blocks within the damage tolerant philosophy for aircraft structures. Application of damage tolerance to any other type of structure includes the same steps, i.e., design, verification, and operational management.

4 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20231
20222
202120
202029
201942
201828