Concept Study of Future Land Observation Satellite Techniques when Utilizing Khatri-Rao (KR) Product Array Processing. - Daichi Hirahara; Takeshi Motohka; Akihisa Uematsu (IGARSS, 2020)

Utilizing Sparse Pulse Repetition Interval and KR Product Before Azimuth Compression for Sar Processing. - Daichi Hirahara (IGARSS, 2021)

Multiuser Detection of Collided AIS Packets with Accurate Estimates of Doppler Frequencies. - Kohei Nozaki; Yuwa Takanezawa; Yuyuan Chang; Kazuhiko Fukawa; Daichi Hirahara (VTC Spring, 2021)

Signal Separation of Collided AIS Packets Employing Iterative Channel Parameter Estimation in Space-based AIS. - Kohei Nozaki; Yuyuan Chang; Kazuhiko Fukawa; Daichi Hirahara (VTC Spring, 2022)

Multiuser Detection with Accurate Channel Estimation for Collided AIS Packets. - Kohei Nozaki; Yuyuan Chang; Kazuhiko Fukawa; Daichi Hirahara (IEICE Trans. Commun., 2025)