Adaptive array calibration is a key technique, which significantly affects the performance of array signal processing in real environments. In this letter, we propose a general and simple method using real steering vectors (RSVs) for array calibration and high-precision direction of arrival estimation. The RSVs are constructed with the data sampled at intermediate frequency directly. All errors of the antennas and channels are taken into account. The effectiveness of this method is evaluated by simulation and measurement with a four elements microstrip linear array and a cylindrical conformal array. Both simulation and measurement results show that it is an efficient calibration method and is suitable for arrays with directional elements.

中文翻译：

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高精度DOA估计实导向矢量阵列标定理论与实验


自适应阵列标定是一项关键技术，它显着影响实际环境中阵列信号处理的性能。在这封信中，我们提出了一种使用真实转向矢量（RSV）进行阵列校准和高精度到达方向估计的通用且简单的方法。 RSV 是用直接以中频采样的数据构建的。天线和信道的所有误差都被考虑在内。通过四阵元微带线阵和圆柱共形阵列的仿真和测量评价了该方法的有效性。仿真和测量结果均表明该方法是一种高效的标定方法，适用于具有方向性元件的阵列。