An auto‐classification procedure for concealed weapon detection in millimeter‐wave radiometric imaging systems

H Işiker, İ Ünal, M Tekbaş… - Microwave and Optical …, 2018 - Wiley Online Library
In this work, we developed and proposed an auto‐classification technique for concealed
weapon detection (CWD) for passive millimeter‐wave (PMMW) imaging systems. This …

Data-dependent clustering-CFAR detector in heterogeneous environment

S Lu, W Yi, W Liu, G Cui, L Kong… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
This paper devises a new constant false alarm rate (CFAR) detection scheme to deal with
the problem of radar target detection in heterogeneous environment. The proposed scheme …

An experiment on MSTAR data for CFAR detection in lognormal and weibull distributed sar clutter

DK Mahapatra, KR Pradhan… - … Conference on Microwave …, 2015 - ieeexplore.ieee.org
In this paper, a constant false alarm rate (CFAR) target detection algorithm is presented.
Here, lognormal and Weibull distributions are considered for modeling clutter amplitude of …

Wide‐field circular SAR imaging: An empirical assessment of layover effects

S Demirci, E Yigit, C Ozdemir - Microwave and Optical …, 2015 - Wiley Online Library
In circular synthetic aperture radar (CSAR), targets are usually scanned over the complete
azimuthal aperture of 360°. A major challenge inhibiting successful CSAR image production …

Clutter removal in millimeter wave GB-SAR images using OTSU's thresholding method

E Yiğit, Ş Demirci, C Özdemir - International Journal of Engineering …, 2022 - dergipark.org.tr
In this study, a filtering method based on the threshold value of normalized synthetic
aperture radar (SAR) data is proposed to eliminate clutter in millimeter wave ground based …

Target Detection in Sea Clutter with Application to Spaceborne SAR Imaging

S Hamidi - arXiv preprint arXiv:2409.02155, 2024 - arxiv.org
In this paper, the challenging task of target detection in sea clutter is addressed. We analyze
the statistical properties of the signals which have been received from the scene and based …

Design of ultra-wide band dual-polarized quad ridged horn antenna for obstacle penetrating radar imaging applications

B Yılmaz - International Journal of Engineering and Geosciences, 2022 - dergipark.org.tr
In this study, a high-gain and dual-polarized Quad Ridged Horn Antenna (QRHA) is
proposed and designed to be used in Obstacle Penetrating Imaging Radar (OPIR) …

Modeling and Analysis of Spatial and Temporal Land Clutter Statistics in SAR Imaging Based on MSTAR Data

S Hamidi - arXiv preprint arXiv:2410.03816, 2024 - arxiv.org
The statistical analysis of land clutter for Synthetic Aperture Radar (SAR) imaging has
become an increasingly important subject for research and investigation. It is also absolutely …

CFAR Detection of ships based on Median Absolute Deviation for SAR imagery in a Heterogeneous Weibull Sea Clutter

H Madjidi, T Laroussi… - 2024 8th International …, 2024 - ieeexplore.ieee.org
Ship detection in SAR (Synthetic Aperture Radar) imagery plays a crucial role in maritime
surveillance, enabling the monitoring of vessel activity, ensuring maritime safety, and …

High-isolation antenna system for x-band synthetic aperture radar

MW Niaz, RA Bhatti - Wireless Personal Communications, 2017 - Springer
An antenna system for high resolution airborne synthetic aperture radar (SAR) is developed
at X-band. Basic specifications of the antenna are obtained from the swath and azimuth …