Enabling OTFS for Hypersonic Aircraft Over LEO Satellite: A 3-D System Model and Differential Delay-Doppler Pilot. - Wenliang Lin; Wenjia Wang; Ke Wang 013; Zhongliang Deng; Da Wan; Yaohua Deng; Zibo Feng; Zhengdao Fan; Senchao Deng (IEEE Internet Things J., 2026)