Suguru Kameda
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Mapping the Carrier Phase of a Propagating Wave by Wireless Two-Way Interferometry Scanned by a Mobile Robot Open
This study proposes a wireless high-precision carrier phase mapping system that removes the need for wired synchronization, which has been a significant limitation of conventional methods. The system achieves a root mean square error (RMSE…
Noncontact Respiration Measurement Inside and Outside Electromagnetic Anechoic Chamber Using Millimeter-Wave Radar Open
Noncontact vital signs sensing is the technology for measuring vitals without attaching measuring instruments to the human body. Compared with the contact type, the noncontact type does not require the stress of mounting a measuring instru…
View article: A Spectrum Regeneration and Demodulation Method for Multiple Direct Undersampled Real Signals
A Spectrum Regeneration and Demodulation Method for Multiple Direct Undersampled Real Signals Open
We propose a spectrum regeneration and demodulation method for multiple direct RF undersampled real signals by using a new algorithm. Many methods have been proposed to regenerate the RF spectrum by using undersampling because of its simpl…
View article: Evaluation of channel capacity of millimeter-wave wireless body area network in overcrowded train
Evaluation of channel capacity of millimeter-wave wireless body area network in overcrowded train Open
Millimeter-wave (mmW) wireless body area network (WBAN) is effective in reducing inter-WBAN interference because of the large attenuation by human body blocking. In this paper, for evaluating the interference power and the channel capacity…
Random Access Control Scheme with Reservation Channel for Capacity Expansion of QZSS Safety Confirmation System Open
For capacity expansion of the Quasi-Zenith Satellite System (QZSS) safety confirmation system, frame slotted ALOHA with flag method has previously been proposed as an access control scheme. While it is always able to communicate in an opti…
Experimental evaluation of synchronization accuracy considering sky view factor for QZSS short message synchronized SS-CDMA Open
We have previously proposed synchronized spread spectrum code division multiple access (SS-CDMA) as a method for short message communication using the Quasi-Zenith Satellite System (QZSS). In this paper, we have evaluated the time synchron…
Validation of gridded data set of global surface wind/wind-stress vector field Open
Gridded data of global surface wind/wind-stress vectors, called J-OFURO v2, were obtained from satellite scatterometer (QuikSCAT/SeaWinds) data for the decade from August 1999 to July 2009. The data were validated by comparing with (1) in …