Results 251 to 260 of about 41,729 (299)

Sea Clutter Suppression by Atomic Norm Minimisation in Frequency Diverse Array‐Space‐Time Adaptive Processing Radar Under Range Ambiguity

IET Radar, Sonar & Navigation
Sea clutter suppression is a hot topic for airborne radar. Space‐time adaptive processing (STAP) is a useful approach to address this issue. Currently, range ambiguity is a problem to restrict conventional STAP performance. The conventional STAP cannot
Zhao Wang, Xuecong Li, Chao Xu, Bo Wu, Di Song   +4 more
semanticscholar   +1 more source

Frequency offset optimization in frequency diverse array radar: a genetic algorithm approach for improved anti-jamming performance

International Conference on Mechatronics Engineering and Artificial Intelligence
Traditional phased array radars effectively suppress sidelobe interference but struggle with mainlobe interference. Frequency Diverse Array (FDA) radar, with its range-dependent beam pattern due to frequency offsets at each element, offers a solution to ...
Meiduo Hao, Wen Hu, Zehua Xia
semanticscholar   +1 more source

Secure Wireless Communication via Movable Frequency Diverse Array

2025 IEEE International Conference on Communications Workshops (ICC Workshops)
Frequency diverse array (FDA) is a promising antenna technology to achieve physical layer security by varying the frequency of each antenna at the transmitter.
Youran Zhao, Zihao Cheng, Jiangbo Si, Zan Li, N. Al-Dhahir   +4 more
semanticscholar   +1 more source

Receive signal model of frequency diverse array radar in the terahertz band

Applied Optics and Photonics China
Frequency diverse array (FDA) radar employs frequency increments instead of the phase differences in the phased array (PA), enabling the radar system to achieve spatial automatic scanning without relying on the phase shifters.
Chongyang Xin, Hongqiang Wang, Lepeng Zhang, Qi Yang   +3 more
semanticscholar   +1 more source

AI-Based Multi-Target Localization with Multi-Tx and Single-Rx Frequency Diverse Array Radar

Electronics
Recently, frequency diverse array (FDA) systems have gained attention in target localization due to their time-varying and range-angle-dependent beam-focusing characteristics, which are different from those of conventional phased array (PA) systems ...
Jimyung Kang, Geon U Kim, J. Kim, S. Lee, Sang-hwa Yi   +4 more
semanticscholar   +1 more source

Photonic Generation of Dual-Carrier Signals Using Optical Frequency Comb Pair for Frequency Diverse Array

Journal of Lightwave Technology
We report a photonic generation method of dual-carrier frequency diverse array (FDA) signal based on dual optical frequency combs (OFCs). Only three Mach-Zehnder modulators (MZMs) are needed to generate five-channel dual-carrier FDA signals without any ...
Huiyun Tang, Jinfeng Du, Zexuan Kong, Chao Luo, Ming Li, Wei Li   +5 more
semanticscholar   +1 more source

Investigation of the Performance of Frequency Diverse Array Radar Using FDTD Method

IEEE Sensors Journal
We propose employing a finite difference time domain (FDTD) method to fully understand the performance of frequency diverse array (FDA) radar in terms of energy propagation, clutter interference, Doppler shift, direction of arrival (DOA) estimation, and ...
Yunsoo Kim, Youngwook Kim
semanticscholar   +1 more source

Time Modulated Frequency Diverse Array Using Fractal Antenna

National Radio Science Conference
This paper presents a novel configuration of a fractal circularly polarized frequency diverse array (FDA), designed to reduce side lobe levels (SLL) through the application of time modulation technique.
D. M. Azzam, S. Zainud-Deen, H. Malhat, M. M. Badawy   +3 more
semanticscholar   +1 more source

Angle Estimation Deception Using Coherent Frequency Diverse Array

International Radar Conference
The rapid evolution of modern radar systems, particularly phased array radars with enhanced direction-estimation and localization capabilities, has driven critical requirements of advanced electronic warfare technologies.
Yanxing Wang, Lan Lan, Shengqi Zhu, Ximin Li, Biao Yang, Runlong Ma   +5 more
semanticscholar   +1 more source

Radar System Combining Frequency Diverse Array and Time-Modulated Array

European Radar Conference
This paper proposes for the first time a radar system that combines a frequency diverse array (FDA) and a time-modulated array (TMA) for target localization.
Geon U Kim, Sang-Hwa Yi, J. Kim
semanticscholar   +1 more source