collaborators

6 papers

eess.SP2026

Autofocus Method for Human-Body Imaging under Respiratory Motion Using Synthetic Aperture Radar

Masaya Kato, Takuya Sakamoto

This study presents an effective autofocusing approach for synthetic aperture radar imaging of the human body under conditions of respiratory motion. The proposed method suppresses…

eess.SP2026

Radar-Based Identification of Individuals Using Heartbeat Features Extracted from Signal Amplitude and Phase

Haruto Kobayashi, Takuya Sakamoto

This study proposes a non-contact method for identifying individuals through the use of heartbeat features measured with millimeter-wave radar. Although complex-valued radar signal…

eess.SP2026

Deformation-Aware Observation Modeling for Radar-Based Human Sensing via 3D Scan-Depth Sequence Fusion

Guangqi Shi, Kimitaka Sumi, Takuya Sakamoto

Non-contact radar-based human sensing is often interpreted using simplified motion assumptions. However, respiration induces non-rigid surface deformation of the human body that im…

eess.SP2025

Millimeter-Wave Radar Sensing of Wombat Respiration

Marina Murakami, Ryoko Iwase, Chiemi Iba +2

This study demonstrates the feasibility of radar-based non-contact respiratory monitoring for wombats. Two measurement experiments were conducted in June and December 2024 using 79…

eess.SP2025

Physiology-Informed Multivariate Variational Mode Decomposition for Orientation-Robust Sensing Using Distributed Millimeter-Wave Radar Systems

Kimitaka Sumi, Takuya Sakamoto

This study proposes a robust non-contact physiological sensing method using distributed radar systems to address the challenges arising from varying body orientations. Conventional…

eess.SP2025

Simulation for Noncontact Radar-Based Physiological Sensing Using Depth-Camera-Derived Human 3D Model with Electromagnetic Scattering Analysis

Kimitaka Sumi, Takuya Sakamoto

This study proposes a method for simulating signals received by frequency-modulated continuous-wave radar during respiratory monitoring, using human body geometry and displacement…