35 citations · 53 across the 8 of their papers we have counts for
8 papers
Radar-Based Noncontact Measurement of Heartbeat of Humans and Chimpanzees Using Millimeter-Wave Radar with Topology Method
Itsuki Iwata, Takuya Sakamoto, Takuya Matsumoto +1
This study proposes a method to determine the filter parameters required for the topology method, which is a radar-based noncontact method for measurement of heart inter-beat inter…
Radar-Based Estimation of Human Body Orientation Using Respiratory Features and Hierarchical Regression Model
Wenxu Sun, Shunsuke Iwata, Yuji Tanaka +1
This study proposes an accurate method to estimate human body orientation using a millimeter-wave radar system. Body displacement is measured from the phase of the radar echo, whic…
Radar-Based Respiratory Measurement of a Rhesus Monkey by Suppressing Nonperiodic Body Motion Components
Takuya Sakamoto, Daisuke Sanematsu, Itsuki Iwata +2
We propose a method to measure the respiration of a rhesus monkey using a millimeter-wave radar system with an antenna array. Unlike humans, small animals are generally restless an…
Stepped-frequency DORT Imaging with Singular Value Decomposition for a Single-antenna Ultrawideband Radar in Multi-path Environments
Takuya Sakamoto
Ultrawideband radar is an attractive technology for a variety of applications including security systems. As such, it is essential to develop low-cost systems that produce clear ta…
Multiradar Data Fusion for Respiratory Measurement of Multiple People
Shunsuke Iwata, Takato Koda, Takuya Sakamoto
This study proposes a data fusion method for multiradar systems to enable measurement of the respiration of multiple people located at arbitrary positions. Using the proposed metho…
Noncontact Respiratory Measurement for Multiple People at Arbitrary Locations Using Array Radar and Respiratory-Space Clustering
Takato Koda, Takuya Sakamoto, Shigeaki Okumura +1
We developed a noncontact measurement system for monitoring the respiration of multiple people using millimeter-wave array radar. To separate the radar echoes of multiple people, c…
Ultra-Wideband Radar and Wireless Human Sensing
Takuya Sakamoto
This study presents the progress of our recent research regarding wireless measurements of the human body. First, we explain radar imaging algorithms for screening passengers at se…
Signal Separation Using a Mathematical Model of Physiological Signals for the Measurement of Heart Pulse Wave Propagation With Array Radar
Takuya Sakamoto
The arterial pulse wave, which propagates along the artery, is an important indicator of various cardiovascular diseases. By measuring the displacement at multiple parts of the hum…