Multimodal Deep Learning for Heterogeneous GNSS-R Data Fusion and Ocean Wind Speed Retrieval. - Xiaohan Chu; Jie He 001; Hongqing Song; Yue Qi; Yueqiang Sun; Weihua Bai; Wei Li 060; Qiwu Wu (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2020)