本文選題：正交頻分復(fù)用 + 子載波間干擾　； 參考：《中國民航大學(xué)》2016年碩士論文

【摘要】：脈沖熄滅是正交頻分復(fù)用(OFDM)系統(tǒng)最常用的脈沖干擾抑制方法,但脈沖熄滅有效消除脈沖干擾的同時又會產(chǎn)生子載波間干擾(ICI)惡化OFDM鏈路傳輸?shù)目煽啃浴槎糠治雒}沖熄滅導(dǎo)致的ICI對OFDM接收機(jī)差錯性能的影響,論文開展了脈沖熄滅OFDM接收機(jī)性能的研究,論文主要研究內(nèi)容如下:第一,為定量分析脈沖噪聲對OFDM接收機(jī)差錯性能的影響,以伯努利~復(fù)高斯脈沖噪聲模型為基礎(chǔ),在頻率選擇性衰落信道分析給出OFDM接收機(jī)解調(diào)器輸出信干噪比計算公式,進(jìn)一步給出了多進(jìn)制相移鍵控(M-PSK)調(diào)制和多進(jìn)制正交幅度調(diào)制(M-QAM)調(diào)制的OFDM接收機(jī)符號差錯概率計算公式,最后計算機(jī)仿真結(jié)果驗證了理論分析的正確性。第二,為定量分析脈沖熄滅導(dǎo)致的ICI對單輸入單輸出(SISO)OFDM接收機(jī)差錯性能的影響,以伯努利~復(fù)高斯脈沖噪聲模型為基礎(chǔ),在頻率選擇性衰落信道分析給出脈沖熄滅SISO-OFDM接收機(jī)解調(diào)器輸出信噪比(SNR)計算公式,進(jìn)一步給出了脈沖熄滅OFDM接收機(jī)符號差錯概率計算公式,最后計算機(jī)仿真結(jié)果驗證了理論分析的正確性。第三,將脈沖熄滅OFDM接收機(jī)差錯性能的理論分析方法推廣到最大比值合并(MRC)OFDM系統(tǒng),空時塊編碼(STBC)OFDM系統(tǒng)和多輸入多輸出(MIMO)OFDM系統(tǒng),定量分析給出頻率選擇性衰落信道下脈沖熄滅MRC-OFDM接收機(jī),脈沖熄滅STBC-OFDM接收機(jī)和脈沖熄滅MIMO-OFDM接收機(jī)符號差錯性能計算公式,最后計算機(jī)仿真結(jié)果驗證了理論分析的正確性。
[Abstract]:Pulse quenching is the most commonly used pulse interference suppression method in orthogonal frequency division multiplexing (OFDM) systems. However, pulse extinguishment can effectively eliminate pulse interference and at the same time produce intercarrier interference (ICI) to worsen the reliability of OFDM link transmission. In order to quantitatively analyze the effect of ICI caused by pulse quenching on the error performance of OFDM receiver, the performance of OFDM receiver with pulse quenching is studied in this paper. The main contents of this paper are as follows: first, In order to quantitatively analyze the effect of pulse noise on the error performance of OFDM receiver, based on the Bernoulli ~ complex Gao Si pulse noise model, the formula for calculating the signal-to-noise ratio of OFDM receiver demodulator is presented in frequency selective fading channel analysis. Furthermore, the formulas for calculating the symbol error probability of the OFDM receiver for the modulation of the multi-ary phase-shift keying keying (M-PSK) and the M-QAM modulation are given. Finally, the computer simulation results verify the correctness of the theoretical analysis. Secondly, in order to quantitatively analyze the effect of ICI caused by pulse extinguishment on the error performance of SISO OFDM receiver, the Bernoulli complex Gao Si pulse noise model is used as the basis. In the frequency selective fading channel analysis, the formula for calculating the output signal-to-noise ratio (SNR) of the pulse extinguishing SISO-OFDM receiver demodulator is given, and the formula for calculating the symbol error probability of the pulse extinguishing OFDM receiver is given. Finally, the computer simulation results verify the correctness of the theoretical analysis. Thirdly, the theoretical analysis method of the error performance of the pulse extinguishing OFDM receiver is extended to the maximum ratio combined OFDM system, the space-time block coded OFDM system and the multiple-input multiple-output MIMO-OFDM system. The formulas for calculating the symbol error performance of pulse extinguishing MRC-OFDM receiver, pulse extinguishing STBC-OFDM receiver and pulse extinguishing MIMO-OFDM receiver in frequency selective fading channel are given quantitatively. Finally, the correctness of the theoretical analysis is verified by computer simulation results.
【學(xué)位授予單位】：中國民航大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TN929.53;TN851

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