An efficient ranging method based on Chinese remainder theorem for RIPS measurement
An efficient ranging method based on Chinese remainder theorem for RIPS measurement作者机构：Ministry of Education Key Lab for Intelligent Networks and Network Security Xi’an Jiaotong University Xi’an China
出 版 物：《Science China(Information Sciences)》 (中国科学:信息科学(英文版))
年 卷 期：2010年第53卷第6期
页 面：1233-1241页
核心收录：
学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 080202[工学-机械电子工程] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 0802[工学-机械工程]
基 金：supported by the National Natural Science Foundation of China (Grant No. 60772095) the Funds for Creative Research Groups of China (Grant No. 60921003)
主 题：ranging phase ambiguity Chinese remainder theorem robustness energy efficiency wireless sensor networks
摘 要：The radio interferometric positioning system(RIPS) measures the phase difference of the interference signal to provide high accuracy and at the same time maintain simple hardware configuration for wireless sensor ***, it suffers from phase ambiguity problem because of the periodicity of phase, which makes it hard to determine the actual distance difference only from a single phase *** solve the problem, RIPS makes multiple measurements at different frequencies so as to determine the distance difference from multiple ***, this is a computationally intensive searching process and not suitable for energyconstrained wireless sensor *** this paper, we introduce the Chinese remainder theorem(CRT) to RIPS to solve the phase ambiguity ***, we utilize some properties of the coefficients in the CRT algorithm to avoid the over-sensitivity of the traditional CRT, which increases the robustness of the *** apply this robust CRT algorithm to the ranging process which calculates the distance difference directly from a closed-form equation and therefore reduces the response time and the energy consumption of the ranging procedure.
同方期刊数据库