Journal ArticleDOI
On Modeling RCS of Aircraft for Flight Simulation
Björn Persson,Martin Norsell +1 more
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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 distributionread more
Citations
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Journal ArticleDOI
MLFMM-based, fast multiple-reflection physical optics for large-scale electromagnetic scattering analysis
Dao P. Xiang,Matthys M. Botha +1 more
TL;DR: An accelerated version of the mesh-based MRPO method, using the multi-level, fast multipole method (MLFMM), is used to accelerate internal reflected field calculation and internal shadowing determination, demonstrating accuracy and efficiency for general scattering objects.
Journal ArticleDOI
Empirical Study of Flight-Dynamic Influences on Radar Cross-Section Models
Björn Persson,Peter H. Bull +1 more
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.
Proceedings ArticleDOI
The influence of dual stealth aircraft formation cooperating with aerial bombing on the performance of monopulse radar
TL;DR: The influence of cooperative aerial dropping of dual stealth aircraft formation on the angle tracking error performance of monopulse radar is analyzed, and it is concluded for the first time that the angle tracker error will be reduced when there is no interference in the air bombing of two planes.
Journal ArticleDOI
Conservative RCS Models for Tactical Simulation
Björn Persson,Martin Norsell +1 more
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.
Proceedings ArticleDOI
Improving Precision of RCS Measurement Based on Spectral Extrapolation Method
TL;DR: In this paper, a spectral extrapolation method for measuring the RCS at two ends of band more exactly is proposed, where the measured data are extrapolated to obtain the unknown value out of band with an auto-regressive model (AR model).
References
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Book
Introduction to Radar Systems
TL;DR: This chapter discusses Radar Equation, MTI and Pulse Doppler Radar, and Information from Radar Signals, as well as Radar Antenna, Radar Transmitters and Radar Receiver.
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Mersenne twister: a 623-dimensionally equidistributed uniform pseudo-random number generator
TL;DR: A new algorithm called Mersenne Twister (MT) is proposed for generating uniform pseudorandom numbers, which provides a super astronomical period of 2 and 623-dimensional equidistribution up to 32-bit accuracy, while using a working area of only 624 words.
Journal ArticleDOI
Probability of detection for fluctuating targets
TL;DR: The investigation shows that, for these fluctuation models, the probability of detection for a fluctuating target is less than that for a non-fluctuating target if the range is sufficiently short, and is greater if therange is sufficiently long.
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Mathematics handbook for science and engineering
Lennart Råde,Bertil Westergren +1 more
TL;DR: In this article, the authors present a glossary of functions and symbols for algebra, geometry and trigonometry, including the elementary functions and the Elementary Functions of Differential Calculus (one variable).
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Introduction to RF stealth
TL;DR: The purpose of this book is to provide a new generation of designers with a firm and proven basis for new developments and to allow buyers of stealth technology to separate the charlatans from serious engineers.