Frequency Diverse Array and Spotlight Synthetic Aperture Radar 2D Imaging Based on Multiple Repeated Subpulses [PDF]
SensorsFrequency diverse array (FDA) beams show an “S” shape in space and cannot form a spot beam; thus, they cannot be directly combined with spotlight synthetic aperture radar (SSAR).
Qinlin Li +3 more
doaj +3 more sources
Range-Angle-Dependent Beamforming by Frequency Diverse Array Antenna [PDF]
International Journal of Antennas and Propagation, 2012 This paper proposes a range-angle-dependent beamforming for frequency diverse array (FDA) antenna systems. Unlike conventional phased-array antenna, the FDA antenna employs a small amount of frequency increment compared to the carrier frequency across ...
Wen-Qin Wang, Huaizong Shao, Jingye Cai
doaj +3 more sources
Prospects of FMCW-based frequency diverse array radar [PDF]
The Journal of Engineering, 2019 The linear frequency modulated (LFM) frequency modulated continuous wave (FMCW)-based frequency diverse array (FDA) radar concept is investigated in detail. The radar operates as a linear pulsed FMCW/FDA in the transmission (TX) mode while it operates as
Ramazan Çetiner +3 more
doaj +3 more sources
Space scanning FMCW-based two-dimensional frequency diverse array radar [PDF]
The Journal of Engineering, 2019 The frequency-modulated continuous wave (FMCW)-based frequency diverse array (FDA) radar concept is extended to two dimensions (2D). The radar operates as a linear pulsed FMCW/FDA in the transmission (TX) mode while it operates as a pulsed FMCW/phased ...
Savaş Karadağ +2 more
doaj +3 more sources
Frequency Diverse Array Super-Resolution Design With Element Locator Polynomial Rooting Approach
IEEE Access, 2023 Unlike traditional phased-array only generating angle-dependent beampattern, the relatively new frequency diverse array (FDA) produces an angle-range-dependent transmit beampattern that can provide many new applications.
Wen-Qin Wang
doaj +1 more source
Frequency Diverse Array Auto-Scanning Beam Characteristics and Potential Radar Applications
IEEE Access, 2022 Different from the phased-array with the same carrier frequency for all elements providing only angle-dependent beampattern, frequency diverse array (FDA) using a small frequency offset across its array elements offers new application capabilities due to
Wen-Qin Wang
doaj +1 more source
Ambiguity Analysis for Multitarget Estimation Using Random Permutated Frequency Diverse Arrays
IEEE Access, 2020 For multitarget estimation using a frequency diverse array with a random permutated frequency increment (RP-FDA), ambiguity occurs when targets are located at specific locations and the frequency increment vector is not properly designed.
Jingjing Li +4 more
doaj +1 more source
Direction modulation based on planar rectangular non‐linear frequency diverse array
Electronics Letters, 2023 Since its inception, the frequency diverse array (FDA) has attracted extensive attention and research because of its unique properties. However, most of the research primarily focuses on linear geometry FDA, with fewer studies on planar FDA.
Yuanhao Zhang +3 more
doaj +1 more source
IET Signal Processing, 2022 By controlling the null distribution in the range‐angle dimension, the frequency diverse array (FDA) can handle range‐dependent interference, which is usually difficult to solve for the traditional phased array.
Xiaolang Shao +3 more
doaj +1 more source
Detection Performance Analysis of the Standard FDA and FDA-MIMO Radar in the Gaussian Background
International Journal of Antennas and Propagation, 2021 This paper studies the optimal detection performance of the standard frequency diverse array (FDA) radar and FDA multi-input multioutput (FDA-MIMO) radar in Gaussian clutter and noise. Array signal processing scheme at the receiver is firstly designed to
Yongze Liu, Yuehong Ma, Haiming Jing
doaj +1 more source