矢量傳感器誤差校正與補償
Calibration and Remedy for Vector-Sensor
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摘要: 當陣列模型存在誤差時，子空間類方法的高分辨性能會顯著下降，因此必須進行有效的校正。由于矢量天線本身的復(fù)雜性，其相位誤差很難精確校準且原有的基于標量天線相位誤差的估計方法已經(jīng)不再適應(yīng)于矢量天線。該文在到達角已知情況下，給出了一種估計矢量天線陣列相位誤差的新方法，并導(dǎo)出了各通道相位誤差的計算公式。最后的數(shù)值模擬結(jié)果說明了本文方法是簡單有效的。
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關(guān)鍵詞:
- 矢量傳感器;相位誤差;高分辨方法;校正與補償
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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