We investigate a target detection probability (TDP) using path loss of an airborne radar based on air-to-air scenarios in anomalous atmospheric and weather environments. In the process calculating TDP, it is necessary to obtain overall including environment, gas attenuation, rainfall beam scanning loss. The quad-linear refractivity model other input parameters simulated Advanced Refractive Effe...

In this paper, an ultra-wideband, wide angle and polarization-insensitive metasurface is designed, fabricated, and characterized for suppressing the specular electromagnetic wave reflection or backward radar cross section (RCS). Square ring structure is chosen as the basic meta-atoms. A new physical mechanism based on size adjustment of the basic meta-atoms is proposed for ultra-wideband manipu...

Space debris is internationally recognized as a planetary threat. Efforts to enhance the worldwide radar monitoring networks have been intensified in last years. Among new radars employed for observations, one of most promising Bistatic Radar Low Earth Orbit (LEO) Tracking (BIRALET), which employs Sardinia Radio Telescope receiving segment. The (SRT) has recently proven be reliable instrument s...

Vector potential formulation and parametric studies of electromagnetic scattering problems of a sphere characterized by the rotationally symmetric anisotropy are studied. Both epsilon and mu tensors are considered herein, and four elementary parameters are utilized to specify the material properties in the structure. The field representations can be obtained in terms of two potentials, and both...

The fast physical optics (FPO) method for calculating the monostatic radar cross section (RCS) of an object over a range of frequencies is extended to the shooting and bouncing rays (SBR) method where the multi-bounce phenomena of the launched rays is considered. The FPO method is an improved version of the physical optics (PO) method, which is efficient when calculating the monostatic RCS over...

Abstract A five-slot hexagonal shape chipless RFID tag is designed, simulated, and manufactured on FR4 substrate. The designed tag's copper geometry was replicated a wide range of dielectric substrate to quantify the impact resonance quality factor (RQF) resonating frequencies. performance assessed in three configurations. First, radar cross section (RCS) studied over different substrates. vari...

For a novel indoor-localization system, chipless tags with high retro-directive radar cross-section (RCS) under wide-angle incidence are required as fixed landmarks. Tags based on dielectric resonators (DRs) were proposed to provide identification by resonance frequency coding. To achieve satisfactory read range for the localization low RCS levels of these require major boost. A solution was fo...

Inspired by recent advances in multiple-input multiple-output (MIMO) communications, this proposal introduces the statistical MIMO radar concept. To our knowledge, this is the first time that the statistical MIMO is being proposed for radar. The fundamental difference between statistical MIMO and other radar array systems is that the latter seek to maximize the coherent processing gain, while s...

Most of the industrial software codes used for the prediction of the radar cross-section (RCS) of aircrafts are based on ray tracing. While ray based methods give useful scattered fields from the skin of the aircraft illuminated by an incident plane wave, they largely fail to predict the returns from cavities onboard. As a possible enhancement to these ray-tracing programs, an auxiliary program...

The accuracy of the RCS (Radar Cross Section) test is closely related to conductivity model surface. Chinese military standard has stringent surface resistance criteria for models. If are appropriately relaxed, processing can be more effective and expenses reduced. However, there few quantitative evaluations relationship between error, making it impossible design in accordance with requirements...