Radar Cross-Section Formulation of a Shell-Shaped Projectile Using Modified PO Analysis

A physical optics based method is presented for calculation of monostatic Radar Cross-Section (RCS) of a shell-shaped projectile. The projectile is modeled using differential geometry. The paper presents a detailed analysis procedure for RCS formulation using physical optics (PO) method. The shortcomings of the PO method in predicting accurate surface current density near the shadow boundaries are highlighted. A Fourier transform-based filtering method is proposed to remove the discontinuities in the approximated surface current density. The modified current density is used to formulate the scattered field and RCS. Numerical results are presented comparing the proposed method with conventional PO method. The results are also compared with published results of similar objects and found to be in good agreement.

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Study on Cylinder's Surface Current Density and Radar Cross Section (RCS) Resonance

2013 International Conference on Information Technology and Applications ◽

10.1109/ita.2013.33 ◽

2013 ◽

Author(s):

Jinzu Ji ◽

Feiliang Liu

Keyword(s):

Cross Section ◽

Current Density ◽

Surface Current ◽

Radar Cross Section ◽

Surface Current Density

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TM Scattering by Perfectly Conducting Polygonal Cross-Section Cylinders: A New Surface Current Density Expansion Retaining up to the Second-Order Edge Behavior

IEEE Transactions on Antennas and Propagation ◽

10.1109/tap.2011.2167924 ◽

2012 ◽

Vol 60 (1) ◽

pp. 407-412 ◽

Cited By ~ 12

Author(s):

Giulia Coluccini ◽

Mario Lucido ◽

Gaetano Panariello

Keyword(s):

Cross Section ◽

Current Density ◽

Surface Current ◽

Second Order ◽

Surface Current Density ◽

Edge Behavior ◽

Density Expansion

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Electromagnetic Scattering by a Transversely Moving Conducting Cylinder of Arbitrary Cross Section

Canadian Journal of Physics ◽

10.1139/p73-092 ◽

1973 ◽

Vol 51 (7) ◽

pp. 699-706 ◽

Cited By ~ 1

Author(s):

J. D. Hunter

Keyword(s):

Cross Section ◽

Current Density ◽

Computational Efficiency ◽

Electromagnetic Scattering ◽

Surface Current ◽

Incident Field ◽

Arbitrary Cross Section ◽

Numerical Calculations ◽

Surface Current Density ◽

Conducting Cylinder

A method of calculating the electromagnetic scattering from a transversely moving conducting cylinder of arbitrary cross section is derived in terms of the surface current density on the cylinder, with a particular view to computational efficiency. It is shown that the required numerical calculations are only slightly more complicated than those for a stationary cylinder. Results are presented for a transversely moving conducting triangular cylinder for both TM and TE polarizations of the incident field.

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Influence of propellant choice on MPD arcjet cathode surface current density distribution

Physics Letters A ◽

10.1016/0375-9601(89)90782-2 ◽

1989 ◽

Vol 141 (3-4) ◽

pp. 169-171 ◽

Cited By ~ 1

Author(s):

T.S. Sheshadri

Keyword(s):

Density Distribution ◽

Current Density ◽

Cathode Surface ◽

Surface Current ◽

Current Density Distribution ◽

Surface Current Density

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Usage of integral representations for the surface current density when solving the problem on radiation of ultra wideband signals by unenclosed bent shields

4th International Conference on Antenna Theory and Techniques (Cat. No.03EX699) ◽

10.1109/icatt.2003.1238802 ◽

2004 ◽

Author(s):

V.I. Zamyatin ◽

G.V. Yermakov

Keyword(s):

Current Density ◽

Surface Current ◽

Integral Representations ◽

Ultra Wideband ◽

Surface Current Density ◽

Wideband Signals

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Method Based on Physical Optics for the Computation of the Radar Cross Section Including Diffraction and Double Effects of Metallic and Absorbing Bodies Modeled With Parametric Surfaces

IEEE Transactions on Antennas and Propagation ◽

10.1109/tap.2004.836444 ◽

2004 ◽

Vol 52 (12) ◽

pp. 3295-3303 ◽

Cited By ~ 29

Author(s):

F. Saez de Adana ◽

I. Gonzalez Diego ◽

O. Gutierrez Blanco ◽

P. Lozano ◽

M.F. Catedra

Keyword(s):

Cross Section ◽

Radar Cross Section ◽

Physical Optics ◽

Parametric Surfaces

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An UWB Physical Optics Approach for Fresnel-Zone RCS Measurements on a Complex Target at Non-Normal Incidence

Sensors ◽

10.3390/s19245454 ◽

2019 ◽

Vol 19 (24) ◽

pp. 5454

Author(s):

Ilie Valentin Mihai ◽

Razvan Tamas ◽

Ala Sharaiha

Keyword(s):

Cross Section ◽

Fresnel Zone ◽

Normal Incidence ◽

Radar Cross Section ◽

Physical Optics ◽

Fast Method ◽

Field Zone ◽

Fresnel Region ◽

Receiving Antenna ◽

Complex Target

In this paper, we propose a fast method for measuring the radar cross section of a complex target at non-normal incidences and Fresnel region antenna-to-target distances. The proposed method relies both on the physical optics approach and on averaging the field distribution over the transmitting and receiving antenna apertures. The ratio between the analytical expression of the radar cross section at far-field and Fresnel region results in a field-zone extrapolation factor. The RCS resulting from the scattering parameters measured at Fresnel region distances is then corrected with that field-zone extrapolation factor. The method is suitable to be used in a perturbed, multipath environment by applying the distance averaging technique, coupling subtraction or time gating. Our technique requires a very simple measuring configuration consisting of two horn antennas and a vector network analyzer. The experimental validation of the proposed technique demonstrates reasonable agreement with simulated radar cross section at non-normal incidence.

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Study on the Influence of Electrode Collocation to Electric Field Characteristic of ESP

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.875-877.1683 ◽

2014 ◽

Vol 875-877 ◽

pp. 1683-1686

Author(s):

Cheng Liang Jia ◽

You Shan Sun ◽

Chao Huang ◽

Wan Peng Zhang ◽

Fang Chen

Keyword(s):

Electric Field ◽

Current Density ◽

Surface Current ◽

Electrode Configuration ◽

Electrode Gap ◽

Average Current Density ◽

Surface Current Density ◽

Discharge Electrode ◽

Field Characteristic ◽

Average Current

A laboratory-scale ESP with new electrode configuration was established to investigate the electric field characteristic. Eight teeth prick line and prick plate with the length of 20mm were employed as discharge electrodes, respectively. The effects of discharge electrode type and electrode gap on V-I characteristic and surface current density were studied. The results showed that the optimum electrode gaps were 350-400mm for eight teeth line and 300-350mm for prick plate, which could obtained higher average current density and lower variance.

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