high-frequency radar cross section
Optimization Study of Radar Cross Section Reduction by an Inhomogeneous Collisional Magnetized Plasma
... of radar transmitted waves in stealth ...polymeric radar absorbing ...and, high absorption rate, is one of the most effective materials for electromagnetic (EM) waves ...the radar absorbing ...
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Determination of interrogating frequencies to maximize electromagnetic backscatter from objects with material coatings
... interrogating frequency of the radar by, say, 10 % from evader’s design ...of high absorbent frequencies wider by tuning both relative permittivity and magnetic permeability of the coating ...the ...
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Fast and Accurate Radar Cross Section Computation Using Chebyshev Approximation in Both Broad Frequency Band and Angular Domains Simultaneously
... both frequency and incident angle. The RCS contains both frequency and angle information ...a frequency band and angular domains ...effect frequency band is limited by the inherent property of ...
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Polarization Conversion Metasurface for Broadband Radar Cross Section Reduction
... to radar cross section (RCS) ...the high PCR, RCS reduction of 10 dB can be realized over 60% frequency bandwidth with respect to the equal-sized PEC ground ...
7
Reflectarray Antenna with Radar Cross-Section Reduction
... cut-off frequency of the input coaxial to waveguide transition, this simple experimental procedure yielded results which, as shown in Figure 9, are in a good agreement with the computer ...a high Q response ...
12
RADAR CROSS SECTION PREDICTION TECHNIQUES AND THEIR APPLICATIONS
... (MOM). High frequency or approximate methods which are used for complex large targets comprises of Geometrical optics, Physical Optics, Geometrical theory of diffraction, Physical theory of diffraction and ...
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Reflectarray antenna with radar cross section reduction
... cut-off frequency of the input coaxial to waveguide transition, this simple experimental procedure yielded results which, as shown in Figure 9, are in a good agreement with the computer ...a high Q response ...
12
The Fractional Derivative Approach for the Diffraction Problems: Plane Wave Diffraction by Two Strips with the Fractional Boundary Conditions
... Total Radar Cross Section frequency characteristics show that for fractional order between 0 and 1, the resonance peaks are increased, and we get a resonator with higher values of Total ...
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Radar Cross Section Reduction Property of High Impedance Surface on a Lossy Dielectric
... very high (3000 ohms) compared to free space, thus the reflection coefficient magnitude is ...this frequency, which is due to the cancellation of imaginary parts of impedance of grounded dielectric and ...
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Radar Cross Section Reduction Techniques using Metamaterials
... RAMs are quite efficient in controlling the backscattering than forwarding scattering. They have comparatively high values of the imaginary part of permeability and permittivity. Salisbury screen and Dallenbach ...
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The Essential Digital Signal Processing In HF Radar Target Detection
... High-frequency radar (HF radar) usually must meet ahigher average transmit power to achieve its long-rangedetection capability and effective target discrimination [1];in addition to the ...
5
Ionosphere Probing with a High Frequency Surface Wave Radar
... Abstract—This paper describes how the ionosphere reflected echoes observed by a high frequency surface wave radar (HFSWR) can be processed to extract information regarding the ionosphere sporadic E ...
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Contributions to Tsunami Detection by High Frequency Radar
... on High Frequency (HF) radars, several different detection methods have been proposed, two of which are discussed and compared in this paper: (i) the Time Correlation Algorithm (TCA), developed by the ...
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Patch Shape Influence Upon Radar Cross Section of a Cylindrical Microstrip Antenna
... the σ θθ /σ 0 of a rectangular cylindrical patch. As in the previous case (see Fig. 7), the considered frequency region abounds with resonances. The highest quality resonance is at the frequency f = 0.68 ...
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Application of Frequency Diversity to Suppress Grating Lobes in Coherent MIMO Radar with Separated Subapertures
... phased-array radar system, which can only transmit scaled versions of a single waveform, a multi-input multi-output (MIMO) radar system has shown much flexibility by transmitting multiple orthogonal (or ...
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Ultra Wideband Antenna with Reduced Radar Cross Section
... It is well known fact that RCS determines how detectable an object is with the radar. There are various ways of reducing the RCS of target, like physical target shaping [4], applying Radar Absorbing ...
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Estimation of Radar Cross Section of a Target under Track
... allocating radar beam for tracking a target, it is attempted to maintain the signal-to-noise ratio (SNR) of signal returning from the illuminated target close to an optimum value for efficient track ...average ...
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Analysis and Synthesis of Radar Cross Section of Array Antennas
... Abstract—Our previous work has proved that the Monostatic Radar Cross Section (MRCS) of array antennas can be decomposed into the multiplication of array MRCS factor and element MRCS factor. The ...
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Scattering and Transformation of Waves on Heavy Particles in Magnetized Plasma
... of high-frequency waves in dusty plasmas due to electron density inhomogeneities have been inves- tigated in ...transformation cross sections for two cases (the electrons in the shielding clouds ...
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A New Theorem Concerning Scattering of Electromagnetic Waves in Multilayered Metamaterial Spherical Structures
... Metamaterials are the group of materials in which the real part of the permittivity and/or permeability is negative [1-6]. These materials are classified in three groups of ENG (Epsilon Negative) with negative ...
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