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
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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
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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
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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
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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
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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
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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
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Joint Decoupling Optimization of Frequency Offsets and Array Elements for Frequency Diverse Arrays
International Journal of Antennas and PropagationFrequency diverse array (FDA) has a distance-angle–dependent beam direction map, which has a greater application advantage than phased array. However, due to the distance-angle coupling and periodicity of its beam direction map, it makes the parameter ...
Yuming Lu +4 more
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On the Sideband Harmonics in Pulsed Frequency Diverse Arrays [PDF]
IEEE Access, 2023 Pulsed frequency diverse arrays (FDAs) have recently garnered significant research attention in radar and sensing applications due to their range-dependent radiation properties. However, the time-dependent nature of radiation can limit the benefits of FDAs.
Ihsan Kanbaz +4 more
openaire +3 more sources