摘要： 介绍一种UHF RFID系统本振相位噪声性能分析的方法。在一般情况下，相位噪声是频率源信号与干扰信号的相互混频。在UHF RFID系统中发射信号与本振信号使用的是相同的振荡器，距离相关现象会影响相位噪声性能的指标要求。在考虑到距离相关影响的前提下重新得到RFID系统的新的相位噪声方程并进行仿真，仿真结果表明距离相关是UHF RFID系统设计中的重要因素。
关键词:
UHF RFID系统,
相位噪声,
距离相关,
仿真
Abstract: This paper introduces an analysis method of phase noise requirements on a local oscillator for a UHF Radio Frequency Identification (RFID) system. In general case, phase noise requirements are derived considering a reciprocal mixing with an interference signal. In UHF RFID system, the same oscillator is used for the transmitted signal and the Local Oscillator(LO), range correlation phenomenon effects the phase noise requirements. This paper derives new phase noise equation considering the range correlation effect on the RFID system and a simulation is done. Simulation results for UHF RFID system show that range correlation effect is the important factor in RFID system design.
Key words:
UHF RFID system,
phase noise,
range correlation,
simulation
中图分类号:
张 俊;何怡刚;侯周国;代 扬. UHF RFID系统相位噪声的研究与仿真[J]. 计算机工程, 2009, 35(21): 274-276.
ZHANG Jun; HE Yi-gang; HOU Zhou-guo; DAI Yang. Study and Simulation of Phase Noise for UHF RFID System[J]. Computer Engineering, 2009, 35(21): 274-276.