Radar cross-section (RCS) analysis of high frequency surface wave radar targets

Authors : Gonca ÇAKIR, Levent SEVGİ

Pages : 457-468

View : 16 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Realistic high frequency surface wave radar insert ignore into journalissuearticles values(HFSWR); targets are investigated numerically in terms of electromagnetic wave -- target interactions. Radar cross sections insert ignore into journalissuearticles values(RCS); of these targets are simulated via both the finite-difference time-domain insert ignore into journalissuearticles values(FDTD); method and the Method of Moments insert ignore into journalissuearticles values(MoM);. The virtual RCS prediction tool that was introduced in previous work is used for these investigations. The virtual tool automatically creates the discrete FDTD model of the target under investigation and performs the FDTD RCS analysis. It also automatically constructs a MoM wire grid model of the target; therefore, it is also possible to compare FDTD results against the MoM-based NEC insert ignore into journalissuearticles values(Numerical Electromagnetic Code); data. Bi-static RCS patterns under a variety of illuminations over the whole HF band insert ignore into journalissuearticles values(3-30 MHz); are presented. The mono-static RCS vs. frequency of these targets is also given.
Keywords : Electromagnetic scattering, High frequency surface wave radar, HFSWR, Surveillance, Radar cross section, RCS, RCS prediction, RCS reduction, Finite difference time domain, FDTD, Method of Moments, MoM, Numerical electromagnetic code, NEC, mono stat