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Now showing items 61-70 of 103
The Effects of Geometric Scattered Signal Waveform Modeling on Target Identification Performance
(IEEE, 2017)
Target identification from scattered signals using time domain techniques depend significantly on the waveform. Recently, a novel feature set is proposed which encounter structural properties of the waveform and collects ...
Comparison of Scattered Signal Waveform Recovery Techniques Under Low SNR for Target Identification
(IEEE, 2017)
Target identification from scattered electromagnetic waves is a difficult problem especially at low SNR levels, which prevents extraction of distinguishable information. When a scattered signal is corrupted by noise, it ...
Hierarchical Reconstruction and Structural Waveform Analysis for Target Classification
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2016)
Classification of objects from scattered electromagnetic waves is a difficult problem, as it heavily depends on aspect angle. To minimize this dependency, distinguishable features can be used. In this paper, we propose a ...
Evaluation of Waveform Structure Features on Time Domain Target Recognition under Cross Polarization
(IOP PUBLISHING LTD, 2016)
Classification of aircraft targets from scattered electromagnetic waves is a challenging application, which suffers from aspect angle dependency. In order to eliminate the adverse effects of aspect angle, various strategies ...
Circularly Polarized Hemispherical Antennas for Telemetry and Telecommand Applications in Satellite Communication
(IEEE, 2016)
This study describes about Ku-band antennas with circular polarization in hemispherical radiation pattern for telemetry and telecommand applications of satellite communication. The first section of antenna contains a septum ...
Application of Dielectric Resonator Based Metamaterial in Waveguide Coupler
(IEEE, 2016)
In this study, an implementation of the metamaterial structure is used in a waveguide directional coupler. For this purpose, a four-hole waveguide directional coupler in X-band is designed. Then, the block of dielectric-resonator ...
Omnidirectional and Circularly Polarized Waveguide Circular Slot Antenna Array for Satellite Communication
(IEEE, 2016)
In this paper, the design of omnidirectional and circularly polarized antennas, which can be used in satellite communication, is explained. These antennas consist of circular slotted array placed symmetrically on a cylindrical ...
Radar Target Classification for Resonance Scattering Region Targets with Min-Norm Signal Processing Method
(IEEE, 2016)
This paper presents a radar target classification method using high-resolution Min-Norm (minimum norm) technique to discriminate targets in a selected target database. The method is convenient for the targets at the resonance ...
Metamaterial Characteristics of Dielectric Resonator Arrays in Rectangular Waveguide and Free space
(IEEE, 2015)
The study demonstrates the metamaterial characteristics of the arrays containing dielectric resonators by evaluating the permittivity and permeability coefficients of the array structures in rectangular waveguide and free ...
An RF Anechoic Box System Development for Shielding Effectiveness Measurements
(IEEE, 2015)
Shielding effectiveness is a term that defines the electromagnetic shielding property of a material. The demand of using wireless technologies and higher frequencies in new devices also bring the need to shield the unwanted ...