矢量传感器误差校正与补偿
Calibration and Remedy for Vector-Sensor
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摘要: 当阵列模型存在误差时,子空间类方法的高分辨性能会显著下降,因此必须进行有效的校正。由于矢量天线本身的复杂性,其相位误差很难精确校准且原有的基于标量天线相位误差的估计方法已经不再适应于矢量天线。该文在到达角已知情况下,给出了一种估计矢量天线阵列相位误差的新方法,并导出了各通道相位误差的计算公式。最后的数值模拟结果说明了本文方法是简单有效的。Abstract: A novel vector sensors array calibration method based on subspace approaches in the presence of phase errors on high-resolution estimation methods is presented in this paper. Because of the complexity of vector sensors, the available methods for estimating the channel phase errors of the scalar sensors are not suitable for vector sensors. The computational formulas of the channel phase errors are derived in this paper. Finally, simulation results verify the effectiveness of the new algorithm.
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