Ye Tian 0023 Haohua Du Chao Gu Junyang Zhang 0001 Shanyue Wang Hao Zhou 0001 Jiahui Hou Xiang-Yang Li 0001 Lip-Siri: Contactless Open-Sentence Silent Speech with Wi-Fi Backscatter. 2026 January abs/2601.18177 CoRR https://doi.org/10.48550/arXiv.2601.18177 db/journals/corr/corr2601.html#abs-2601-18177 streams/journals/corr