Results 51 to 60 of about 8,837 (176)

Research on building signal processing analysis module using RTL-SDR

open access: yesTạp chí Khoa học và Công nghệ
The research focuses on the development and evaluation of a radio signal processing and analysis module, utilizing RTL-SDR equipment in combination with a Raspberry Pi 4 Model B embedded computer. By applying signal processing algorithms such as the Fast
Trung Thanh Nguyen, Ngoc Thang Bui
doaj   +1 more source

Metal Organic Framework‐Modified Carbon Fiber Microelectrodes for Enhanced Neurochemical Detection

open access: yesChemElectroChem, Volume 13, Issue 8, 15 April 2026.
In this work, we modified carbon fiber microelectrodes (CFMEs) with the iron‐based metal organic framework MIL‐88B(Fe) and examined their performance using fast scan cyclic voltammetry (FSCV). The modification enhanced the dopamine signal at low concentrations and enabled consistent nanomolar detection, while maintaining clear peak separation in ...
Teflah Alshammari   +4 more
wiley   +1 more source

SPH Simulates Steep‐Stepped Spillway Flows Assessing Convergence, DDT Effects, and Pressure Accuracy

open access: yesChemical Engineering &Technology, Volume 49, Issue 4, April 2026.
Numerical investigation of high‐gradient stepped spillway flows using the SPH method, highlighting the simulation setup and skimming flow regime. Convergence analysis compares results with and without the Density Diffusion Term (DDT), showing its effectiveness in reducing spurious oscillations.
Eduardo Masaji Endo   +3 more
wiley   +1 more source

CFAR-DP-FW: A CFAR-Guided Dual-Polarization Fusion Framework for Large-Scene SAR Ship Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Effective ship detection in synthetic aperture radar (SAR) imagery is crucial for maritime safety and surveillance. Despite the advancements in deep learning for SAR ship detection, significant challenges remain, particularly in large scenes.
Tianjiao Zeng   +7 more
doaj   +1 more source

Wilcoxon Nonparametric CFAR Scheme for Ship Detection in SAR Image

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The parametric constant false alarm rate (CFAR) detection algorithms, which are based on various statistical distributions, such as Gaussian, Gamma, Weibull, log-normal, $G^{0}$, and alpha-stable distribution, are most widely used to detect the ship ...
Xiangwei Meng
doaj   +1 more source

Modified reference window for two-dimensional CFAR in radar target detection

open access: yesThe Journal of Engineering, 2019
The constant false alarm rate (CFAR) technology plays an important role in radar target detection. In cell averaging CFAR detectors, a reference window is usually adopted to estimate the average interference power in the range–Doppler matrix and to ...
Weijiang Wang   +4 more
doaj   +1 more source

JNAM: a new detector proposed for marine radars

open access: yesInternational Journal of Information and Communication Technology Research, 2015
The proposed detector in this paper was obtained from a combination of adaptive and clutter-map detectors. Detection power of detectors has been studied in homogeneous and non-homogeneous environment (presence of interference targets) through MATLAB ...
Ali Naseri, Jahan Jamshidi
doaj  

CFAR Target Detector in Synthetic Aperture Radar

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника
Introduction. Constant false alarm rate (CFAR) detectors have found application in synthetic aperture radar (SAR) systems. The operating principle of a classic cell averaging detector (CA-CFAR detector) is based on comparing the decision statistics in ...
A. A. Monakov
doaj   +1 more source

SAR image target-detection method based on two-stage CFAR detector with G^0 distribution

open access: yesThe Journal of Engineering, 2019
CFAR detection algorithm is widely used in the typical target detection of SAR images. In SAR image target detection, the simple statistical distribution models, such as Gaussian distribution, normal distribution, Weibull distribution etc., are obviously
Cai Fu-qing   +3 more
doaj   +1 more source

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