frequency division短语⁹⁰⁸⁸⁷⁺⁷ 基本例句 分频,频率划分 物理 In order to improve the tag read rate of the passive RFID system, a novel passive RFID system jointly using frequency division multiple access FDMA and TDMA technologies is proposed in this work. 为了改善被动式无线射频系统中的标签读取率，本篇论文中提出一个新的被动式无线射频系统，结合了分频多工和分时多工的技术。140.118.33.11