摘要
研究了无源射频识别(RFID)系统中幅移键控(ASK)调制度对读写器与标签之间能量传输及数据传输的影响,推导出了能量传输效率和数据传输可靠性随调制度变化的计算公式,并给出了相应的性能曲线。这些公式和曲线有助于RFID系统ASK调制度的选取和读写器的功率设计,可用于指导实际无源RFID系统的应用设计与开发。
The influence of the Amplitude Shift Keying（ASK） modulation depth on energy transmission and data transmission between a reader and a tag in the passive Radio Frequency Identification（RFID） system was investigated. Expressions of energy transmission efficiency and data transmission reliability varying with the modulation depth were deduced, and their performance curves were given. These expressions and curves are helpful to the selection of ASK modulation depth for an RFID system and the power design of a reader, and they can be used to guide application design and development of the passive RFID systems in practice.
出处
《信息与电子工程》
2009年第6期497-500,共4页
information and electronic engineering
基金
重庆市教委科技计划项目(KJ085724)
关键词
调制度
幅移键控
无源RFID
能量和数据传输
modulation depth
Amplitude Shift Keying
passive Radio Frequency Identification
energy and data transmission
