Akira KITAYAMA


High-Density Implementation Techniques for Long-Range Radar Using Horn and Lens Antennas
Akira KITAYAMA Akira KURIYAMA Hideyuki NAGAISHI Hiroshi KURODA 
Publication:   
Publication Date: 2021/10/01
Vol. E104-C  No. 10  pp. 596-604
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
77 GHz long-range radarhorn and lens antennaantenna isolationdirection of arrival estimationcompact implementation
 Summary | Full Text:PDF(3.4MB)

Low-Power Implementation Techniques for Convolutional Neural Networks Using Precise and Active Skipping Methods
Akira KITAYAMA Goichi ONO Tadashi KISHIMOTO Hiroaki ITO Naohiro KOHMU 
Publication:   
Publication Date: 2021/07/01
Vol. E104-C  No. 7  pp. 330-337
Type of Manuscript:  Special Section PAPER (Special Section on Solid-State Circuit Design — Architecture, Circuit, Device and Design Methodology)
Category: 
Keyword: 
convolutional neural network (CNN)SSD500 networkdeep neural network (DNN) implementationlow power consumptionembedded AI technique
 Summary | Full Text:PDF(3.3MB)

Horn and Lens Antenna with Low Height and Low Antenna Coupling for Compact Automotive 77-GHz Long-Range Radar
Akira KURIYAMA Hideyuki NAGAISHI Hiroshi KURODA Akira KITAYAMA 
Publication:   
Publication Date: 2020/10/01
Vol. E103-C  No. 10  pp. 426-433
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technologies)
Category: Microwaves, Millimeter-Waves
Keyword: 
77-GHz long-range radarhorn and lens antennafront-end moduledifferential antennaantenna couplingdirection of arrival estimation
 Summary | Full Text:PDF(1.5MB)

Feedback Signal Processing that Improves Accuracy of Velocity and Direction of Arrival Estimation for Automotive Radar
Saki SUSA TANAKA Akira KITAYAMA Yukinori AKAMINE Hiroshi KURODA 
Publication:   
Publication Date: 2020/10/01
Vol. E103-C  No. 10  pp. 543-546
Type of Manuscript:  BRIEF PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
MIMOmillimeter-wave radarDoArange-velocity estimationphase error calibration
 Summary | Full Text:PDF(317.7KB)