A miniaturized frequency selective rasorber (FSR) with high selectivity passband and wideband absorption properties is presented. Its performance as an absorber over a wide band from 8.08 to 18.08 GHz through the structure of metal incurved square loop loaded resistors. The surface (FSS) using Jerusalem cross array metallic patch realizes transmission 2.7 3.52 GHz. And insertion loss (IL) 0.37 ...

This paper investigates the joint target parameter (delay and Doppler) estimation performance of linear frequency modulation (LFM)-based radar networks in a Rice fading environment. The active radar networks are composed of multiple radar transmitters and multichannel receivers placed on moving platforms. First, the log-likelihood function of the received signal for a Rician target is derived, ...

Decoys have a crucial role in the electronic countermeasure and deception concepts, many works developments been realized over past few decades. The most impressive one is miniature air-launched decoy (MALD)s. They are used to give impression of an attack enemy airspace by imitating fighters' radar signatures flight profiles. However, they resemble emission fighters; their detection probabiliti...

Enhancing the frequency band of electromagnetic wave is regarded as an efficient way to solve communication blackout problem. In this paper, incident raised Terahertz (THz) and radar cross section (RCS) three-dimensional conductive model calculated simulated based on Runge–Kutta Exponential Time Differencing–Finite Difference Domain method (RKETD-FDTD). Interaction THz magnetized plasma sheath ...

In the field of maritime surveillance with satellite imagery, ship detection Synthetic Aperture Radar (SAR) is largely successful exception those cases where target Cross Section (RCS) results very low and hard to detect. The paper presents an automatic algorithm that tackles problem in situations ship’s RCS not measurable but its wake is. At this purpose, proposed uses a combination image proc...

Composite RCS building frames integrate reinforced concrete columns with structural steel beams to provide an efficient solution for the design and construction of earthquake-resisting structures. In this paper, an optimization framework is developed for performance-based seismic design of planar RCS moment resisting frames. The objective functions are defined as minimizing the construction cos...

Filtering synthethic aperture radar (SAR) images ideally results in better estimates of the parameters characterizing the distributed targets in the images while preserving the structures of the nondistributed targets. However, these objectives are normally conflicting, often leading to a filtering approach favoring one of the objectives. An algorithm for estimating the radar cross-section (RCS...

Since antennas are strong radar targets, their cross section (RCS) reduction and radiation enhancement is of utmost necessity, particularly for stealth platforms. This work proposes the design a Fabry–Perot Cavity (FPC) antenna which has wideband low monostatic RCS. While in transmission mode, not only gain achieved, but beam also deflected elevation plane. Moreover, low-profile, i.e., cavity h...

The radar cross-section (RCS) of power lines has an important significance for detection the lines. method moments (MoM) can calculate RCS However, efficiency MoM is limited by time-consuming computing process, as well expensive storage overhead. In order to enhance and reduce calculation lines, we propose that combines characteristic mode (CM) with a Sherman–Morrison–Woodbury formula-based alg...