Deep Tensor 2-D DOA Estimation for URA (II)如第 III-A 小节所述,基于矩阵的神经网络将矢量化隐藏状态 h l − 1 ∈ R ∏ h = 1 5 I l − 1 , h \mathbf{h}_{l-1}\in\mathbb{R}^{\prod_{h=1}^{5}I_{l-1,h}} hl−1∈R∏h=15Il−1,h 与参数矩阵 G l − 1 ∈ R ∏ h = 1 5 I l , h × ∏ h = 1 5 I l − 1 , h \mathbf{G}_{l-1}\in\mathbb{R}^{\prod_{h=1}^{5}I_{l,h}\