"Sang Il Ko,Go Aikawa,Jun-ya Takayama,Shinji Ohyama","A High-Precision RF Time-of-Flight Measurement Method based on Vernier Effect for Localization of Wireless Sensor Networks",,"Sensors & Transducers",,"Vol. 135","No. 12","pp. 27/41",2011,Dec.
"KO SANG IL,相川剛,高山潤也,大山真司","一般化したバーニア効果による高精度伝播時間計測と無線センサネットワークへの応用","第27回センシングフォーラム","第27回センシングフォーラム資料",,,,"pp. 177-181",2010,Sept.