Efficient Beampattern Synthesis for Sparse Frequency Diverse Array via Matrix Pencil Method [PDF]
Sensors, 2022 Due to the introduction of frequency offsets, the pattern synthesis problem of sparse Frequency diverse array (FDA) becomes more complicated than that of the phased array. A typical way to solve this problem is to use a global optimization algorithm, but
Xiaolang Shao +5 more
doaj +4 more sources
Index Modulation for Frequency Diverse Array [PDF]
IEEE Antennas and Wireless Propagation Letters, 2020 The index modulation (IM) approach adds an extra signal modulation dimension by utilizing a subcarrier index domain, which is in addition to the traditional IQ domain. A frequency diverse array (FDA) technology is rapidly developing as a new technique for radar systems.
Gaojian Huang +2 more
exaly +5 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 +4 more sources
Time Frequency Direction Modulation Based on Nonlinear Frequency Diverse Array
IEEE Access, 2023 The conventional frequency diversity array (FDA) can generate arcsine form of continuous direction modulation (DM) waveforms which can automatically scan the entire space range.
Haihua Xie +4 more
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Beampattern analysis of frequency diverse array radar: a review [PDF]
EURASIP Journal on Wireless Communications and Networking, 2021 Electronic beam steering is an essential feature of state-of-the-art radar systems. Conventional phased array (PA) radars with fixed carrier frequencies are well-known for electronically steering their beam with high directivity.
Zeeshan Ahmad, Meng Chen, Shu-Di Bao
doaj +3 more sources
Beampattern Optimization for Frequency Diverse Array With Sparse Frequency Waveforms
IEEE Access, 2017 Multiple-input multiple-output (MIMO) radar equipped with a frequency diverse array (FDA) can produce a range-dependent beampattern and increase the degrees-of-freedom of the antenna array.
Chaoyun Mai +3 more
doaj +4 more sources
Two-Dimensional Barrage Jamming against SAR Using a Frequency Diverse Array Jammer [PDF]
Sensors, 2023 Due to the modulation of tiny frequency offset on the array elements, a frequency diverse array (FDA) jammer can generate multiple range-dimension point false targets, and many deception jamming methods against SAR using an FDA jammer have been studied ...
Jingke Zhang +5 more
doaj +2 more sources
Unambiguous Forward-Looking SAR Imaging on HSV-R Using Frequency Diverse Array [PDF]
Sensors, 2020 It is a challenge to realize wide swath imaging due to the conflict between Doppler ambiguity and range ambiguity for hypersonic vehicle (HSV) radar. In addition, there are many conditions requiring the forward-looking imaging.
Mengdi Zhang +3 more
doaj +2 more sources
Research on Piezoelectric Guided Wave Frequency Diverse Array-Based Damage Location Method for Thin-Walled Structures [PDF]
MicromachinesPhased array technology can be realized with directional control with fixed beam steering. However, its directionally dependent beam pattern limits the efficiency of suppressing undesirable distance interference.
Changlin Wang +2 more
doaj +2 more sources
Accurate Theoretical Models for Frequency Diverse Array Based Wireless Power Transmission
Energies, 2022 Wireless power transfer (WPT) is a well-known problem, and has received wide attention in the next generation industrial applications and consumer electronics. On the other hand, frequency diverse array (FDA) is a new concept with the ability to generate
Zeeshan Ahmad +3 more
doaj +3 more sources