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Tensor-Based Angle and Array Gain-Phase Error Estimation Scheme in Bistatic MIMO Rader
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DOI：10.1109/ACCESS.2019.2909760.png)
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摘要
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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. In our approach, the parallel factor (PARAFAC) decomposition is performed to estimate the transmit and receive direction matrices. Then the estimation of gain error can be obtained according to the relationship between the columns of direction matrices. After that, the linear feature of the phase in the additional well-calibrated array element is utilized to estimate the angles. Finally, by fully using the phase characteristics of all arrays, the phase error can be obtained. Our approach can remove the influence of error accumulation, and thus it has a superior angle and gain-phase error estimation performance, particularly under the condition of low signal-to-noise ratio (SNR). The numerical examples validate the superiority and effectiveness of the proposed scheme.
Keyword:
Bistatic MIMO radar
angle estimation
gain-phase error
parallel factor decomposition
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期刊
IF:
3.6
论文数:
9.8W
被引数:
29.4W
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