宽带信号的DOA估计学习笔记（一）

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1.宽带信号的定义：https://blog.csdn.net/weixin_38452468/article/details/88819878
2.宽带信号与窄带信号在公式表达上的区别：
窄带信号的导向矢量：角度
宽带信号的导向矢量：角度+频率分布
→ 窄带信号的DOA估计方法无法完全应用在宽带信号处理上。
3.宽带信号的DOA估计方法的研究现状

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