Saab AB

About: Saab AB is a company organization based out in Thun, Switzerland. It is known for research contribution in the topics: Signal & Antenna (radio). The organization has 862 authors who have published 928 publications receiving 8807 citations. The organization is also known as: Saab AB & Svenska Aeroplan AB.

Modeling fighter aircraft mission survivability

Abstract: A fighter aircraft flying a mission is often exposed to ground-based threats such as surface-to-air missile (SAM) sites. The fighter pilot needs to take actions to minimize the risk of being shot down, but at the same time be able to accomplish the mission. In this paper we propose a survivability model, which describes the probability that the aircraft will be able to fly a given route without being hit by incoming missiles. Input to this model can consist of sensor measurements collected during flight as well as intelligence data gathered before the mission. This input is by nature uncertain and we therefore investigate the influence of uncertainty in the input to the model. Finally we propose a number of decision support functions that can be developed based on the suggested model such as countermeasure management, mission planning and sensor management.

A five states survivability model for missions with ground-to-air threats

Abstract: Fighter pilots are exposed to the risk of getting hit by enemy fire when flying missions with ground-to-air threats. A tactical support system including a survivability model could aid the pilot to assess and handle this risk. The survivability model presented here is a Markov model with five states; Undetected, Detected, Tracked, Engaged and Hit. The output from the model is the probabilities that the aircraft is in these states during the mission. The enemy's threat systems are represented with sensor and weapon areas and the transitions between the states depend on whether or not the aircraft is within any of these areas. Contrary to previous work, the model can capture the behaviors that the enemy's sensor systems communicate and that the risk of getting hit depends on the enemy's knowledge regarding the aircraft's kinematics. The paper includes a discussion regarding the interpretation of the states and the factors that influence the transitions between the states. Further developments are also identified for using the model to aid fighter pilots and operators of unmanned aerial vehicles with planning and evaluating missions as well as analyzing the situation during flight.

Method and device for detecting a fire shot event in a weapon

Abstract: A method including measuring a physical quantity having a magnitude that changes in time as a result of a fire shot event so as to obtain a measurement signal, and comparing the measurement signal with a predetermined time-domain fingerprint for said quantity, which fingerprint is characteristic of the way the quantity varies in time upon a fire shot event, in order to confirm the occurrence of a fire shot event in case the measurement signal and the fingerprint match.

Multidisciplinary Optimization of Unmanned Aircraft Considering Radar Signature, Sensors, and Trajectory Constraints

Abstract: This paper presents a multidisciplinary design optimization framework applied to the development of unmanned aerial vehicles with a focus on radar signature and sensor performance requirements whil ...