现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
9期
43-46
,共4页
王宇%佘开%唐志军
王宇%佘開%唐誌軍
왕우%사개%당지군
射频识别%同信道干扰%多天线分集%空口参数
射頻識彆%同信道榦擾%多天線分集%空口參數
사빈식별%동신도간우%다천선분집%공구삼수
radio frequency identification%co-channel interference%multi-antenna diversity%air interface parameter
密集阅读器环境下的同信道干扰将显著降低阅读器识别性能，基于Nakagami-m多径信道模型和最大比合并（MRC）算法，推导了多天线分集RFID系统反向识别距离的数学期望值闭合表达式，并遵循ISO18000-6C标准的空口参数进行数值仿真，验证了推导的结论。
密集閱讀器環境下的同信道榦擾將顯著降低閱讀器識彆性能，基于Nakagami-m多徑信道模型和最大比閤併（MRC）算法，推導瞭多天線分集RFID繫統反嚮識彆距離的數學期望值閉閤錶達式，併遵循ISO18000-6C標準的空口參數進行數值倣真，驗證瞭推導的結論。
밀집열독기배경하적동신도간우장현저강저열독기식별성능，기우Nakagami-m다경신도모형화최대비합병（MRC）산법，추도료다천선분집RFID계통반향식별거리적수학기망치폐합표체식，병준순ISO18000-6C표준적공구삼수진행수치방진，험증료추도적결론。
In the circumstance of dense readers,the identification performance of UHF RFID system is degraded by co-channel interference. The closed-form expression of mathematical expectation for reverse identification range of multi-antenna di-versity RFID system is deduced by means of Nakagami-m multi-channel model and maximal ratio combing(MRC)algorithm. Ac-cording to air interface parameters abiding by ISO18000-6C,the numerical simulation was carried out to prove the correctness of the deduction.
