Results 261 to 270 of about 47,507 (304)

In-Flight Calibration and Testing of Phase Interferometry Based Direction Finding Performance for Airborne Radar Warning Receivers

2023 IEEE AUTOTESTCON, 2023
Radar warning receivers (RWR) are used in electronic warfare to sense radar threats by measuring electromagnetic signals. RWRs employ direction-finding (DF) methods for estimating the direction of arrival of a measured radar signal.
Hüseyin Eren Çamlibel, Tahir Doğan, S. Tokgöz   +2 more
semanticscholar   +1 more source

An RF Direction Finding Payload for UAVs with Deep Learning Direction Prediction Via Resnet

International Conference on Unmanned Aircraft Systems
This article describes an RF Direction Finding (DF) payload developed for UAV systems. DF payloads sense RF signals using an antenna array and process the received signals at each antenna location to estimate the number of transmitting RF sources and ...
Andrew R. Willis, Braden Feshami, Srini Vasan, J. Touma   +3 more
semanticscholar   +1 more source

High Frequency Correlative Interferometry Direction Finding

International Scientific Conference on Information, Communication and Energy Systems and Technologies
Main focus of this paper is the improvement of a direction finding (DF) system, by the construction of antennas suitable for DF in the range 28 MHz to 200 MHz.
Evgenii S. Antonov, Ivaylo Nachev, P. Petkov   +2 more
semanticscholar   +1 more source

Direction Estimation of a Jamming Signal Using an Optimized Direction-Finding Algorithm

2025 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON)
This paper presents a low-complexity and efficient direction-finding (DF) algorithm for accurately estimating the direction of jamming signals in GPS-based defense systems.
S. Shashank, Vinay B. Narayane, Paresh Saxena, Ashutosh Baheti   +3 more
semanticscholar   +1 more source

Direction finding of electromagnetic radiation sources using the volumetric phased arrays consisting of the small number of elements

Radioengineering, 2023
Problem statement. This article proposes a method to measure the bearing of electromagnetic radiation sources in the conditions of passive interference with multipath propagation and in the conditions of using "rough" (small number of elements ...
Y. Gorbunov, M. Epifanov
semanticscholar   +1 more source

Enhancing Bluetooth Low Energy Direction-Finding Accuracy: Insights into Frequency Offsets and Signal Characteristics

IEEE International Conference on Electronic Measurement & Instruments
The direction finding (DF) feature has been integrated into the Bluetooth Low Energy (BLE) physical layer to support real-time location systems since the release of Bluetooth version 5.1.
Chen Huang, Hao Liu
semanticscholar   +1 more source

Advancements in Radio Direction Finding and Geolocation: A Comprehensive Literature Review

Enrichment: Journal of Multidisciplinary Research and Development
Radio Direction Finding (DF) and geolocation technologies are important for communication, modern navigation, and defense systems. While the foundational techniques have existed for over a century, they are increasingly challenged by modern ...
Zulhaidir Hamid, D. Dewiani
semanticscholar   +1 more source

Wideband Direction Finding of UAVs/Drones using Log-periodic Antenna Array

International Conference on Autonomic and Trusted Computing
The proliferation of unmanned aerial vehicles (UAVs) has raised significant security and surveillance challenges, necessitating high-precision direction-finding (DF) techniques for effective detection and tracking. This paper presents a novel approach to
Van Long Do, Binh Minh Tran, Minh Tung Duong, T. B. Nguyen   +3 more
semanticscholar   +1 more source

Integration of AI-Driven Electronic Warfare Radio Monitoring Systems with Antenna Array Direction Finding for Advanced Signal Classification and Localization

2025 International Telecommunications Conference (ITC-Egypt)
Electronic warfare (EW) systems are critical for maintaining strategic advantage in modern military operations by detecting, classifying, and neutralizing adversarial signals.
Mohamed A. Aboelazm
semanticscholar   +1 more source

Small Form-Factor Direction Finding Antenna Backed by Software Defined Radios

2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (AP-S/CNC-USNC-URSI)
Two monopole Yagi-Uda antennas with a shared ground plane are integrated with software defined radio (SDR) receivers to perform amplitude-only direction finding (DF) in Sband.
Derek Allen, Collin M. Wallish, D. Filipovic   +2 more
semanticscholar   +1 more source