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Digital Beamforming to Reduce Antenna Side Lobes and Minimize DOA Error

机译:数字波束成形以减少天线侧瓣,最小化DOA误差

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Appropriate signal model derivation for transmitter and receiver can achieve side lobe reduction in phased array antenna and can also be used to accurately determining direction of arrival (DOA). Dolph-Chebyshev array structure is used for null placing in the antenna radiation pattern. This structure ensures nulls have been placed at proper positions to jam the interferers. For this purpose, interferers can be tracked by using direction of arrival estimation. This work investigates DOA for smart antenna array and thereby computes the error in DOA. This error is then removed by adding appropriate phase offset into input phase value to the array based on look-up table (LUT).
机译:发射机和接收器的适当信号模型导出可以实现相控阵天线的侧叶减小,并且还可用于精确确定到达方向(DOA)。 Dolph-Chebyshev阵列结构用于零位放置在天线辐射模式中。这种结构确保空位被放置在适当的位置以堵塞干扰。为此目的,可以通过使用到达方向估计来跟踪干扰。这项工作调查了智能天线阵列的DOA,从而计算了DOA中的错误。然后通过基于查找表(LUT)将输入相位值添加到阵列中的相应相位偏移来删除此错误。

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