Robust Adaptive Multichannel SAR Processing Based on Covariance Matrix Reconstruction

机译：基于协方差矩阵重构的鲁棒自适应多通道SAR处理

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With the combination of digital beamforming (DBF) processing, multichannel synthetic aperture radar(SAR) systems in azimuth promise well in high-resolution and wide-swath imaging, whereas conventional processing methods don't take the nonuniformity of scattering coefficient into consideration. This paper brings up a robust adaptive Multichannel SAR processing method which utilizes the Capon spatial spectrum estimator to obtain the spatial spectrum distribution over all ambiguous directions first, and then the interference-plus-noise covariance Matrix is reconstructed based on definition to acquire the Multichannel SAR processing filter. The performance of processing under nonuniform scattering coefficient is promoted by this novel method and it is robust again array errors. The experiments with real measured data demonstrate the effectiveness and robustness of the proposed method.

机译：与数字波束成形（DBF）处理相结合，方位角上的多通道合成孔径雷达（SAR）系统在高分辨率和宽幅成像中前景很好，而常规处理方法并未考虑散射系数的不均匀性。本文提出了一种鲁棒的自适应多通道SAR处理方法，该方法利用Capon空间谱估计器获取所有歧义方向的空间谱分布，然后根据定义重建干扰加噪声协方差矩阵，得到多通道SAR。处理过滤器。这种新颖的方法提高了在非均匀散射系数下的处理性能，并且再次具有鲁棒性的阵列误差。实际测量数据的实验证明了该方法的有效性和鲁棒性。

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《International conference on graphic and image processing》|2017年|106155A.1-106155A.7|共7页
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Zhen-ya Tan; Feng He;
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Multichannel SAR processing; DBF; covariance matrix reconstruction; nonuniform scattering coefficient;

机译：多通道SAR处理; DBF;协方差矩阵重建;非均匀散射系数;

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专利

1. Robust space-time adaptive processing based on covariance matrix reconstruction and steering vector correction [J] . Hu Xueyao, Zhang Xinyu, Li Yang, . 2019,第21期

机译：基于协方差矩阵重建和转向矢量校正的鲁棒时空自适应处理
2. Robust Adaptive Beamforming Based on Covariance Matrix Reconstruction With Annular Uncertainty Set and Vector Space Projection [J] . Yang Xiaopeng, Li Yuqing, Liu Feifeng, IEEE Antennas and Wireless Propagation Letters . 2021,第2期

机译：基于环状不确定性集的协方差矩阵重建的鲁棒自适应波束成形及矢量空间投影
3. Robust adaptive beamforming based on a method for steering vector estimation and interference covariance matrix reconstruction [J] . Sicong Sun, Zhongfu Ye Signal processing . 2021,第May期

机译：基于转向载波估计和干扰协方差矩阵重建方法的鲁棒自适应波束形成
4. Robust Adaptive Multichannel SAR Processing Based on Covariance Matrix Reconstruction [C] . Zhen-ya Tan, Feng He International Conference on Graphic and Image Processing . 2017

机译：基于协方差矩阵重建的鲁棒自适应多通道SAR处理
5. Robust covariance matrix estimation for radar space-time adaptive processing (STAP). [D] . Kang, Bosung. 2015

机译：雷达时空自适应处理（STAP）的鲁棒协方差矩阵估计。
6. Robust Adaptive Beamforming with Sensor Position Errors Using Weighted Subspace Fitting-Based Covariance Matrix Reconstruction [O] . Peng Chen, Yixin Yang, Yong Wang, 2018

机译：基于加权子空间拟合的协方差矩阵重构的传感器位置误差的鲁棒自适应波束形成
7. Covariance matrix reconstruction and steering vector estimation for robust adaptive transmit/receive beamforming in full phased‐MIMO radar [O] . J. Lu, J. Yang, B. Hou, 2021

机译：完全相同的自适应发送/接收波束成形的协方差矩阵重建与转向载波估计
8. Calculation of a Robust S-Estimator of a Covariance Matrix [R] . Campbell, N. A., Lopuhaae, H. P., Rousseeuw, P. J. 1995

机译：协方差矩阵鲁棒s-估计的计算

Robust Adaptive Multichannel SAR Processing Based on Covariance Matrix Reconstruction

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