传感技术学报2016，Vol.29Issue(4)：519-524,6.DOI:10.3969/j.issn.1004-1699.2016.04.010
多径衰落信道中多OFC-SAW传感器同时读取算法
The Simultaneous Reading Algorithm of Multiple OFC-SAW Sensors in Multipath Fading Channel
摘要
Abstract
In order to solve the problem of simultaneous reading of multiple orthogonal frequency code surface acoustic wave(OFC-SAW)sensors,the signals reflected from multiple OFC-SAW sensors in ideal channel are ana⁃lyzed. The simultaneous reading of multiple OFC-SAW sensors in ideal channel is accomplished by theoretical deri⁃vation. According to the characteristic of multipath fading channel in practice,the mathematical model of a signal reflected from an OFC-SAW sensor in multipath fading channel is established. Then,the model of the relation be⁃tween signals received in reader and signals reflected from each OFC-SAW sensor in multipath fading channel is ob⁃tained by revising the relation model in ideal channel. The channels parameters are estimated by measuring chan⁃nels in time in practical application,and the simultaneous reading of multiple OFC-SAW sensors in multipath fad⁃ing channel is accomplished accordingly. Finally,the feasible is proved by simulation test.关键词
传感器/声表面波/正交频率编码/多径衰落信道Key words
sensor/surface acoustic wave(SAW)/orthogonal frequency code(OFC)/multipath fading channel分类
信息技术与安全科学引用本文复制引用
刘玮峰,邢建春,谢立强..多径衰落信道中多OFC-SAW传感器同时读取算法[J].传感技术学报,2016,29(4):519-524,6.基金项目
国家自然科学基金项目（51505499）；江苏省自然科学基金项目 （）
