Fundamental study on short range measurement using RF time of flight based on Vernier effect  

作　　者：Sang-il Ko Shinji Ohyama 

机构地区：[1]Graduate School of Science and Engineering,Tokyo Institute of Technology

出　　处：《仪器仪表学报》2009年第12期2461-2467,共7页Chinese Journal of Scientific Instrument

摘　　要：Recognizing the position of moving objects, facilities or important equipments has been regarded as a hot issue in the future environment which needs ubiquitous characteristics. Furthermore, it is indispensably needed to acquire location data in order to realize an infrastructure of sensor network system. Namely, distance data are the preliminary information to complete localization of a moving object in local area. Even though there have been several researches on this topic, there are however still much amount of problems in getting precisely exact distance data. Out of them, the research on using TOF (Time-of-flight) is very few as well as could be thought of as a cutting-edge technique. Moreover, it is very difficult to get minutely RF signal's TOF for getting short distance data; that is, very complicated signal processing skills are requested for realizing it. In this paper, we present a new methodology of RF short ranging technique based on vernier effect through using of heterogeneous operating clocks.Recognizing the position of moving objects, facilities or important equipments has been regarded as a hot issue in the future environment which needs ubiquitous characteristics. Furthermore, it is indispensably needed to acquire location data in order to realize an infrastructure of sensor network system. Namely, distance data are the preliminary information to complete localization of a moving object in local area. Even though there have been several researches on this topic, there are however still much amount of problems in getting precisely exact distance data. Out of them, the research on using TOF （Time-of-flight） is very few as well as could be thought of as a cutting-edge technique. Moreover, it is very difficult to get minutely RF signal＇s TOF for getting short distance data; that is, very complicated signal processing skills are requested for realizing it. In this paper, we present a new methodology of RF short ranging technique based on vernier effect through using of heterogeneous operating clocks.

关 键 词：传感器 信号处理技术 射频技术 时间飞行 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TP274.2[自动化与计算机技术—控制科学与工程]