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Hirose-Natsuaki Lab
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The lab uses radio waves and neural networks to see and measure the world.
AboutAbout the lab
Seeing, sensing, and speaking through radio-wave eyes and AI brain functions.
The Hirose-Natsuaki Lab studies wireless electronics and neural networks.
From the standpoint of electronic and information engineering, the lab explores the principles of information processing in the brain and creates new signal processing methods that integrate symbolic processing and pattern processing.
Based on this, the lab develops flexible measurement technologies for electromagnetic waves and light waves, as well as imaging and communication methods.
The lab also works on observing changes on Earth with radar mounted on satellites.
Key terms
- Neural network
- A computational mechanism that imitates the connections between neurons in the brain. It learns features from many examples.
- Imaging
- Creating images that people can see and understand from measured and collected data.
- Polarization
- The direction in which a radio wave oscillates. It changes depending on the shape and state of the object it hits, so it serves as a clue for observation.
NewsLab news
A student won second place in the Student Paper Competition at URSI-GASS 2026
Won the Best Paper Award at IGARSS 2025, an international conference
Prof. Hirose received the Dennis Gabor Award from the International Neural Network Society
A student won the Best Poster Award at the international symposium BFBC 2026
Prof. Hirose received an Achievement Award from the Asia-Pacific Neural Network Society
ResearchResearch themes
The lab combines radio-wave "eyes" with AI that mimics how the brain works to study technologies for seeing, sensing, and speaking. Wireless electronics and neural networks are its two pillars.
*Illustrative imageRadar and Imaging with Brain-Inspired Information Processing
The lab combines the ability of radio waves to "see the invisible" with flexible, brain-like information processing suited to it. It works on imaging with radio waves, from environmental monitoring to autonomous driving and biological measurement.
*Illustrative imageInformation Processing Based on the Mechanisms of the Brain
Today's computers are built on mechanisms different from those of the brain. The lab builds information processing that takes the brain's mechanisms as its essential foundation, comprehensively from devices to systems and applications. Centered on mathematics and physics, it also considers psychological and physiological aspects.
*Illustrative imageRecognizing the "Motion" of the Earth's Surface
The Earth's surface is constantly deforming, not only from earthquakes and volcanic activity but also from human activities such as mining and land reclamation. Using synthetic aperture radar to observe the surface over wide areas, the lab proposes processing algorithms to capture this motion, such as time-series three-dimensional measurement.
*Illustrative imageDisaster Detection with Radar Satellite Observation
This research detects damage from earthquakes, volcanoes, and floods immediately after it occurs. Radar can observe at night and in bad weather. The lab proposes robust, high-accuracy analysis methods based on interferometric analysis.
MembersFaculty
The members of the Hirose-Natsuaki Lab consist of faculty, technical staff, administrative staff, postdoctoral researchers, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorAkira HirosePublications ↗
- Associate ProfessorNatsuaki RyoPublications ↗
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Kawahara LabFaculty of Engineering, Department of Information and Communication EngineeringAI-enabled digital manufacturing technology, wireless power …The information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Radar image of the Danube Delta ESA223752” European Space Agency / CC BY-SA 3.0 igo (cropped)
- Radar and Imaging with Brain-Inspired Information Processing: “Synthetic aperture radar image of Cleveland, OH” Umbra Lab, Inc. / CC BY-SA 4.0 (cropped)
- Information Processing Based on the Mechanisms of the Brain: “Artificial Neural Network with Chip” mikemacmarketing / photo on flickr / CC BY 2.0 (cropped)
- Recognizing the "Motion" of the Earth's Surface: “Envisat radar image of the Panama Canal ESA232186” European Space Agency / CC BY-SA 3.0 igo (cropped)
- Disaster Detection with Radar Satellite Observation: “Kathmandu fringes ESA339296” European Space Agency / CC BY-SA 3.0 igo (cropped)
- Related lab (Yamasaki Lab): “Artificial Neural Network with Chip” mikemacmarketing / photo on flickr / CC BY 2.0 (cropped)
- Related lab (Matsuura Lab): “BalticServers data center” BalticServers.com / CC BY-SA 3.0 (cropped)
- Related lab (Minematsu-Saito Lab): “Long-window reassigned spectrogram of speech” Kelly Fitz / CC BY-SA 3.0 (cropped)
- Related lab (Kawahara Lab): “Printed flexible electronics ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
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