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Björn Persson

Bio: Björn Persson is an academic researcher from Swedish National Defence College. The author has contributed to research in topics: Radar cross-section & Military technology. The author has an hindex of 3, co-authored 7 publications receiving 40 citations. Previous affiliations of Björn Persson include National Defence University, Pakistan.

Papers
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Journal ArticleDOI
TL;DR: High-resolution RCS matrices were used in an investigation of RCS matrix resolution, and an evaluation of different bilinear interpolation methods is presented, finding that the smallest RCS interpolation error was obtained using splines.
Abstract: This paper investigates the implementation of the radar cross section (RCS) of aircraft in modeling and simulation (M&S) More specifically, it addresses the tradeoff between accuracy and computational cost introduced by spatial RCS fluctuations High-resolution RCS matrices, generated using Physical Optics (PO), were used in an investigation of RCS matrix resolution, and an evaluation of different bilinear interpolation methods is presented The spatial Fourier transform was used for resolution analysis It was found that the smallest RCS interpolation error was obtained using splines Furthermore, results showed that the distribution of the relative interpolation error in detection range was well approximated by a log-normal distribution

19 citations

Journal ArticleDOI
TL;DR: In this article, a concept called Military Utility is proposed for the study of the use of technology in military operations, which is derived through conceptual analysis and is based on related concepts used in social sciences, the military domain and Systems Engineering.

19 citations

Journal ArticleDOI
TL;DR: In this paper, measurements and a method for analyzing flight-dynamic effects on radar cross-section models for aircraft are presented, and the results are used to design a radar crosssection model for aircraft.
Abstract: In this work, measurements and a method for analyzing flight-dynamic effects on radar cross-section models for aircraft are presented. Flight-dynamic effects need to be considered when designing co ...

5 citations

Journal ArticleDOI
TL;DR: In this paper, a procedure for generating conservative radar cross section (RCS) models able to meet the computational requirements imposed by simulation and related applications is described, where the key concept is to downsample calculated RCS data retaining local extreme values; thus, a conservative RCS matrix is obtained.
Abstract: This paper describes a procedure for generating conservative radar cross section (RCS) models able to meet the computational requirements imposed by simulation and related applications. The key concept is to downsample calculated or measured RCS data retaining local extreme values; thus, a conservative RCS matrix is obtained. Spline approximations are used in order to obtain continuity in the RCS models. RCS models with varying resolution have been generated and analyzed, and it is shown how spatial Fourier transforms can be used when determining feasibility for certain decision making applications. Furthermore, it is found that the interpolation errors obtained from the conservative RCS models are well described by generalized extreme value theory.

3 citations

Book ChapterDOI
26 Sep 2016
TL;DR: This study investigates the possibility of using computer-based simulators and war games as a part of the ballistics and artillery courses offered to officers and cadets at the Swedish Defence University to enhance the learning process by allowing the students to experiment with physically justified exterior-ballistics models and demonstrate how artillery can be used in combat to achieve military objectives.
Abstract: This study investigates the possibility of using computer-based simulators and war games as a part of the ballistics and artillery courses offered to officers and cadets at the Swedish Defence University. The idea is to enhance the learning process by allowing the students to experiment with physically justified exterior-ballistics models and demonstrate how artillery can be used in combat to achieve military objectives. The pedagogical effect of two types of exercises is investigated: one focusing on the physics of exterior ballistics and the other being a war game where artillery warfare can be exercised. The students are shown how different forces and moments affect the trajectory of a shell in-flight and what possibilities and limitations different artillery systems offer. In the war game, the students get to practice command and control in a tactical scenario against an intelligent opponent, an opponent in the form of another student. The main result of the study consists of a self-report survey and lessons learned by the author. The survey revealed that both the officers and the cadets thought that this type of interactive learning was a good compliment to more traditional education and that they perceived that their understanding of exterior ballistics and artillery tactics was enhanced by working in the simulator. This initial successful outcome gives reason to further explore how other learning objectives can be achieved by expanding the scenarios and focusing on other factors, such as logistics or deployment of artillery locating radar. Furthermore, the war game was limited to a fix situation, scenarios with multiple objectives several ways of completing those objectives should be considered to better reflect the complex environment encountered in ground warfare.

1 citations


Cited by
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Journal ArticleDOI
15 Mar 2018
TL;DR: This study provides a multi-criteria decision-making (MCDM) model so that the confidence interval of fuzzy numbers describes the comparison in pairs whose degree is not determined before the comparison.
Abstract: The military decision-making process is a proven analytical process for designing operations, troops’ movements, logistics or air defense planning. The hybrid FAHP-MABAC model is tested for obtaining/selecting the results for an optimal firing position of the guided anti-tank missile battery (GAMB).This study provides a multi-criteria decision-making (MCDM) model so that the confidence interval of fuzzy numbers describes the comparison in pairs whose degree is not determined before the comparison. By using mathematical expressions the confidence interval is brought into direct connection with the degree of certainty of decision-makers/expert of the comparison performed. In the group decision-making, the confidence intervals differ depending on the decision-maker/expert’s opinion. Finally the sensitivity analysis is used to determine how sensitive a decision model is. The suggested model is expected to contribute to the development of the science of military-operations as well as to prove itself useful to the actors related to defense.

33 citations

Journal ArticleDOI
TL;DR: The proposed MDS method is effective and efficient for the dynamic electromagnetic scattering of aircraft operating on individual rotor or multi-axis rotor-type targets, and the disc tilt or attitude angle affects this periodic and full-machine dynamic scattering.

23 citations

Journal ArticleDOI
TL;DR: The design of combat aircraft with high military effectiveness, affordability and military suitability requires balancing the efforts of many engineering disciplines during all phases of the developmen ...

20 citations