Electromagnetic wave scattering by aerial and ground radar objects

Sukharevsky, O. I.; Vasilets, Vitaly; Zalevsky, G. S.

doi:10.1109/radar.2015.7130989

Cited by 21 publications

(37 citation statements)

References 33 publications

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“…The computational method was verified by cross-checking the values of the radar cross-section (RCS) σ [27] obtained for the spherical screen against the corresponding measured values presented in [14]. For the convenience of cross-checking, we substituted the plane electromagnetic wave into the equation system of Eqs.…”

Section: Verification Of Computational Methodsmentioning

confidence: 99%

Radiation From Reflector Antenna of Finite Thickness and Conductivity in Resonant Scattering Band

Sukharevsky¹,

Nechitaylo²,

Orlenko³

et al. 2019

PIER M

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A method is proposed for calculating the radiation characteristics of a reflector antenna in the resonant wavelength range. The method uses the solution of the problem of electromagnetic field scattering from a well-conducting non-closed screen of finite thickness. This problem is solved by an E-field integral equation and on approximate boundary conditions by Leontovich, which are applied onto a surface of a well-conducting screen.

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Section: Verification Of Computational Methodsmentioning

confidence: 99%

Radiation From Reflector Antenna of Finite Thickness and Conductivity in Resonant Scattering Band

Sukharevsky¹,

Nechitaylo²,

Orlenko³

et al. 2019

PIER M

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“…where P E is the GNSS signal power near the Earth's surface, and it equals −154 dB in GPS L5 signal case [40]; G R is the antenna gain of receiver, and it is set to 35 dB as listed in Table 1; σ is target RCS, for a medium-sized aircraft (like Boeing 737-400), its RCS exceeds 20 dB in L-band, and in some azimuth angle, the RCS is larger than 26 dB [41]; R R is the range between target and receiver, k is the Boltzmann constant, T s is system Kelvin temperature, B w is the signal bandwidth, and F n L is system noise coefficient. For GNSS-based passive radar with the GPS-L5 signal, SNR in is roughly smaller than −70 dB.…”

Section: Multi-static Experiments and Aircrafts Motion Parameters Estmentioning

confidence: 99%

2-D Coherent Integration Processing and Detecting of Aircrafts Using GNSS-Based Passive Radar

et al. 2018

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Long time coherent integration is a vital method for improving the detection ability of global navigation satellite system (GNSS)-based passive radar, because the GNSS signal is not radar-designed and its power level is very low. For aircraft detection, the large range cell migration (RCM) and Doppler frequency migration (DFM) will seriously affect the coherent processing of azimuth signals, and the traditional range match filter will also be mismatched due to the Doppler-intolerant characteristic of GNSS signals. Accordingly, the energy loss of 2-dimensional (2-D) coherent processing is inevitable in traditional methods. In this paper, a novel 2-D coherent integration processing and algorithm for aircraft target detection is proposed. For azimuth processing, a modified Radon Fourier Transform (RFT) with range-walk removal and Doppler rate estimation is performed. In respect to range compression, a modified matched filter with a shifting Doppler is applied. As a result, the signal will be accurately focused in the range-Doppler domain, and a sufficiently high SNR can be obtained for aircraft detection with a moving target detector. Numerical simulations demonstrate that the range-Doppler parameters of an aircraft target can be obtained, and the position and velocity of the aircraft can be estimated accurately by multiple observation geometries due to abundant GNSS resources. The experimental results also illustrate that the blind Doppler sidelobe is suppressed effectively and the proposed algorithm has a good performance even in the presence of Doppler ambiguity.

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“…3). Application of the Lorentz reciprocity theorem to the sought total field ( E, H) and to auxiliary field ( Ê , Ĥ ( x| x 0 , p)), the latter corresponding to that of electric dipole placed at point x 0 that has the vector-moment x 0 = −r R 0 given that only radome is present, allows us to obtain integral representation of the field we seek [16]:…”

Section: Electromagnetic Wave Scattering By Antenna System Under the mentioning

confidence: 99%

Scattering and Radiation Characteristics of Antenna Systems Under Nose Dielectric Radomes

Sukharevsky¹,

Vasylets²,

Nechitaylo³

2017

PIER B

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The calculation method for electromagnetic field scattered by antenna placed inside nose dielectric radome is proposed. To obtain the radiation characteristics we use the calculation method for field generated by radiation aperture given that an arbitrary system of scatterers (particularly, radome) exists in its vicinity. Also the method for calculating radiation characteristics of antenna system with the same radomes is obtained. Considered numerical results tell us that influence of radome on radiation characteristics can be reduced to minimum for any radome type. Besides, the radome can reduce the radar visibility of antenna system outside of its operating frequency range.

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Electromagnetic wave scattering by aerial and ground radar objects

Cited by 21 publications

References 33 publications

Radiation From Reflector Antenna of Finite Thickness and Conductivity in Resonant Scattering Band

Radiation From Reflector Antenna of Finite Thickness and Conductivity in Resonant Scattering Band

2-D Coherent Integration Processing and Detecting of Aircrafts Using GNSS-Based Passive Radar

Scattering and Radiation Characteristics of Antenna Systems Under Nose Dielectric Radomes

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