Results 1 to 10 of about 609 (66)
Sparse Auto-Calibration for Radar Coincidence Imaging with Gain-Phase Errors
Sensors, 2015 Radar coincidence imaging (RCI) is a high-resolution staring imaging technique without the limitation of relative motion between target and radar. The sparsity-driven approaches are commonly used in RCI, while the prior knowledge of imaging models needs ...
Xiaoli Zhou +3 more
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Remote Sensing, 2022 Most subspace-based algorithms need exact array manifold for direction of arrival (DOA) estimation, while, in practical applications, the gain-phases of different array elements are usually inconsistent, degrading their estimation performance.
Yiduo Guo +3 more
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Tensor-Based Angle and Array Gain-Phase Error Estimation Scheme in Bistatic MIMO Radar
IEEE Access, 2019 This paper investigates the issue of angle and array gain-phase error estimation in multiple-input-multiple-output (MIMO) radar, and a tensor-based angle and gain-phase error estimation scheme is proposed.
Yuehao Guo +6 more
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Tensor-Based Target Parameter Estimation Algorithm for FDA-MIMO Radar with Array Gain-Phase Error
Remote Sensing, 2022 As a new radar system, FDA-MIMO radar has recently developed rapidly, as it has broad prospects in angle-range estimation. Unfortunately, the performance of existing algorithms for FDA-MIMO radar is greatly degrading or even failing under the condition ...
Yuehao Guo +4 more
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Remote Sensing, 2021 Ideal transmitting and receiving (Tx/Rx) array response is always desirable in multiple-input multiple-output (MIMO) radar. In practice, nevertheless, Tx/Rx arrays may be susceptible to unknown gain-phase errors (GPE) and yield seriously decreased ...
Fangqing Wen +3 more
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IET Microwaves, Antennas & Propagation, 2021 A dual‐band vector‐sum phase shifter with independent phase control of the 2.4 and 5 GHz Wi‐Fi bands is presented. The network uses band‐limited variable gain amplification, with a broadband hybrid coupler at the input and an in‐phase recombiner at the ...
Johannes J. P. Venter, Tinus Stander
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A New Gain-Phase Error Pre-Calibration Method for Uniform Linear Arrays
Sensors, 2023 In this paper, we consider the gain-phase error calibration problem for uniform linear arrays (ULAs). Based on the adaptive antenna nulling technique, a new gain-phase error pre-calibration method is proposed, requiring only one calibration source with ...
Chang Liu, Xiao Tang, Zhi Zhang
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Flexible Null Broadening Robust Beamforming Based on JADE
Applied Sciences, 2022 In order to flexibly and completely suppress dynamic interference, a flexible and robust beamforming based on JADE is proposed in this paper. In addition, it is insensitive to the gain–phase errors of the array.
Yulong Liu +3 more
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Gain-Phase Errors Calibration for a Linear Array Based on Blind Signal Separation
Sensors, 2020 In this paper, a non-iterative blind calibration algorithm for gain-phase errors is proposed. A mixing matrix is first obtained from the received observation data through blind signal separation.
Zheng Dai, Weimin Su, Hong Gu
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A Ku-Band 6-Bit Vector-Sum Phase Shifter With Half-Quadrant Control Technique
IEEE Access, 2020 This paper presents a 6-bit vector-sum phase shifter with half-quadrant control technique for Ku-band phased arrays. In this paper, the gain and phase symmetry in each quadrant is studied. Based on the gain and phase symmetry in vector-sum phase shifter,
Tianjun Wu +7 more
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