Results 261 to 270 of about 41,729 (299)

Robust Beamforming for Frequency Diverse Array Multiple-Input Multiple-Output Radar: Mitigating Steering Vector Mismatches and Suppressing Main Lobe Interference

Remote Sensing
Frequency Diverse Array Multiple-Input Multiple-Output (FDA-MIMO) radar introduces range-dependent beamforming capabilities, enhancing its ability to differentiate true targets from main lobe jammers.
Yumei Tan, Yong Li, Wei Cheng, Limeng Dong, Langhuan Geng, Muhammad Moin Akhtar   +5 more
semanticscholar   +1 more source

Adaptive Double Pulse Dual Coprime Frequency Diverse Array Multiple Input Multiple Output Radar for Enhanced Range, Angle and Doppler Estimation

IET Microwaves, Antennas & Propagation
In this paper, we propose a Double Pulse‐based Dual Coprime Frequency Diverse Array Multiple Input Multiple Output (DCFDA‐MIMO) radar for enhanced target parameter estimation, including range, angle, and Doppler.
Umair Hafeez Khan, Abdul Basit, N. Baig, Wasim Khan, Muhammad Adeel Khan Jadoon   +4 more
semanticscholar   +1 more source

Frequency Diverse Array Radar Application for Drone Detection

Journal of the Institution of Electronics and Telecommunication Engineers
Growing use of small drones and unmanned aerial vehicles (UAVs) is resulting in increasingly vulnerable security scenarios. Given the serious threat that multi-rotor drones pose, it is becoming more and more important to detect and identify them ...
Venugopal Kulkarni, A. Vengadarajan, K. P. Ray   +2 more
semanticscholar   +1 more source

Mainlobe Deceptive Interference Suppression With Planar Frequency Diverse Array MIMO Radar

IEEE Transactions on Aerospace and Electronic Systems
Frequency diversity array (FDA) is capable of suppressing mainlobe deceptive interference with delays exceeding one pulse relative to the true target, known as interpulse interference.
Mengdi Zhang, Jiahao Lu, Jing Xu, Shiyin Li   +3 more
semanticscholar   +1 more source

Distance-Angle Joint Multiple Access for Far-Field MIMO-OFDM via Frequency Diverse Array

2025 IEEE International Conference on Communications Workshops (ICC Workshops)
Space division multiple access (SDMA) with massive MIMO enhances system capacity through angular user differentiation but requires impractical large-scale arrays for spatial resolution in ultra-dense networks.
Haoyan Liu, Jianjie Cai, Min Yang, Chengguang Li, Yanming Liu, Weiming Bao   +5 more
semanticscholar   +1 more source

Frequency Diverse Array Beampattern Synthesis With Sinc- and Weighted-Sinc-Function-Based Frequency Offsets

IEEE Transactions on Antennas and Propagation
Frequency diverse array (FDA) has received much attention due to its capability of forming range–angle-dependent beampatterns. However, the standard FDA can only provide S-shaped beampatterns, leading to weakening the signal-to-interference-plus-noise ...
H. Wen, P. Gu, Zi He, Ji-wei Lian, Jun Cao, Yong-Zhi Sun, Jian-Xiao Wang, Da-zhi Ding   +7 more
semanticscholar   +1 more source

Movable Frequency Diverse Array-Assisted Covert Communication With Multiple Wardens

IEEE Transactions on Communications
The frequency diverse array (FDA) is highly promising for improving covert communication performance by adjusting the frequency of each antenna at the transmitter. However, when faced with the cases of multiple wardens and highly correlated channels, FDA
Zihao Cheng, Jiangbo Si, Zan Li, Pengpeng Liu, Xiaoting Wang, N. Al-Dhahir   +5 more
semanticscholar   +1 more source

Photonic-Assisted Dot-Shaped Beamforming for Frequency Diverse Array With Nonfixed Frequency Offset

IEEE Transactions on Antennas and Propagation
In contrast to phased array (PA), a frequency diverse array (FDA) exhibits a superior ability to utilize the 2-D domains information on the angle and distance, attributed to its distinctive “S”-shaped or dot-shaped beampattern.
Xirui Zhong, Weile Zhai, Jiajun Tan, Yuanliang Wu, Ruihao Wang, Wen Wen, Donglin Zhang, Wanzhao Cui, Yongsheng Gao   +8 more
semanticscholar   +1 more source

Frequency Diverse Array Signal Generation and Beamforming Based on Dual Optical Combs

Journal of Lightwave Technology
In contrast to phased array (PA), frequency diverse array (FDA) offers enhanced flexibility in beam scanning across both directional and distance dimensions.
Yongsheng Gao, Jiajun Tan, Xirui Zhong, Ruihao Wang, Ruiqiong Wang, Xiaozhe Wang, Weile Zhai, Xiaoyan Pang, Wanzhao Cui   +8 more
semanticscholar   +1 more source

The Effect of Antenna Place Codes for Reducing Sidelobes of SIAR and Frequency Diverse Array Sensors

IET Signal Processing
Synthetic impulse and aperture radar (SIAR) is a technique that frequency diverse array (FDA) radars can imply in practice, thus overcoming some of their challenges.
Pourya Yaghoubi Aliabad, Hossein Soleimani, Mohammad Soleimani   +2 more
semanticscholar   +1 more source