摘要： 根据ISO18000-6C空中接口协议，提出一种射频识别(RFID)读写器发射通道模型。采用升余弦滤波器抑制带外频谱，减少相邻信道干扰，IQ正交混频架构使得系统可以在双边带调制、单边带调制和载波发送之间切换。在Simulink中构建该发射通道模型，模拟该RFID读写器发射通道的数据链路，获得双边带、单边带调制信号的时域波形及不同滚降因子下电平波纹幅度比。
关键词:
发射通道,
射频识别,
国际标准18000-6C,
读写器
Abstract: According to ISO18000-6C air interface protocol, this paper presents a transmitter model of Radio Frequency Identification(RFID) reader. This model uses raised cosine filter to limit the out band spurious spectrum and reduce the interference between channels. The direct conversion architecture with IQ branch makes the system flexible for Double Side Band modulation(DSB), Single Side Band modulation(SSB) and carriers sending. It constructs the model in Simulink to simulate data-link in the transmitter, gets the waveform of DSB and SSB in time domain and ripple amplitude ratio under different roll-off factor.
Key words:
transmitter,
Radio Frequency Identification(RFID),
ISO18000-6C,
reader
中图分类号:
郭湘荣, 武岳山. RFID读写器发射通道Simulink建模分析[J]. 计算机工程, 2010, 36(18): 291-293.
GUO Xiang-Rong, WU Yue-Shan. Analysis of RFID Reader’s Transmitter Simulink Modeling[J]. Computer Engineering, 2010, 36(18): 291-293.