Precise asynchronous rf tof measurement based on two-way-ranging using heterogeneous clocks
Y Saigo, S Ko, J Takayama… - 2012 Proceedings of …, 2012 - ieeexplore.ieee.org
In this paper, a novel RF TOF ranging method for wireless sensor networks based on Two-
Way-Ranging (TWR) using heterogeneous clocks is proposed. It generates new virtual time …
Way-Ranging (TWR) using heterogeneous clocks is proposed. It generates new virtual time …
Proposal of generalized vernier effect and its practical advantage for RF time-of-flight ranging between sensor nodes in wireless sensor networks
S Ko, J Takayama, S Ohyama - Sensors and Actuators A: Physical, 2011 - Elsevier
Accurate ranging technique is indispensable for node localization in wireless sensor
networks (WSNs), and there are various ranging techniques/systems using physical …
networks (WSNs), and there are various ranging techniques/systems using physical …
Wireless sensor networks nodes localization based on inter-node RF range measurement using Vernier effect
AH Alasiry, S Ko, HP Thanh… - 2011 International …, 2011 - ieeexplore.ieee.org
Various method of inter-node range measurement has been used in wireless sensor
networks (WSNs) for node range-based localization. Radio frequency (RF) based time-of …
networks (WSNs) for node range-based localization. Radio frequency (RF) based time-of …
Development of prototype sensor nodes with high-accuracy ranging for localization on wireless sensor networks
J Takayama, HP Thanh, S Ko… - SENSORS, 2011 …, 2011 - ieeexplore.ieee.org
For the wireless sensor networks, we have already proposed novel high-resolution time-of-
flight (ToF) measurement principle on the basis of a vernier effect, and also confirmed its …
flight (ToF) measurement principle on the basis of a vernier effect, and also confirmed its …
Generalized Vernier Effect and Its Application for RF Propagation Time Measurement
JY Takayama, SI Ko, S Ohyama - … of the Society of Instrument and …, 2011 - jstage.jst.go.jp
In wireless sensor network systems, localization of sensor nodes has been required, since
positional information of sensing values can be used for many purposes. Consequently …
positional information of sensing values can be used for many purposes. Consequently …
Generalized vernier effect and its application to precise RF Time-of-Flight measurement for wireless sensor networks
S Ko, G Aikawa, J Takayama… - SENSORS, 2010 …, 2010 - ieeexplore.ieee.org
In order to exactly measure time delay of RF signal to travel a short distance, both high
precision clock system and complex signal processing is absolutely required. This report …
precision clock system and complex signal processing is absolutely required. This report …
一般化バーニア効果とRF 伝播時間計測への応用
高山潤也， 高尚逸， 大山真司 - 計測自動制御学会論文集, 2011 - jlc.jst.go.jp
In wireless sensor network systems, localization of sensor nodes has been required, since
positional information of sensing values can be used for many purposes. Consequently …
positional information of sensing values can be used for many purposes. Consequently …
非同期センサノード間でのRF レンジングのための高精度往復時間計測
西郷雄祐， 大山真司 - 計測自動制御学会論文集, 2014 - jstage.jst.go.jp
抄録 In wireless sensor networks, localization of sensor nodes has been required; precise
ranging is one of the most promising techniques. In this paper, asynchronous RF …
ranging is one of the most promising techniques. In this paper, asynchronous RF …