Opportunistic ISAC for Rain Microphysical Parameters Estimation Using LOS-MIMO Systems. - Congzheng Han; Baofeng Ji; Gaoyuan Zhang; Juan Huo; Yongheng Bi; Weidong Nan; Qixing Feng; Guohui Xin; Siming Zheng; Peng Li; Yele Sun (IEEE Internet Things J., 2026)