一種新的FSK最佳相干解調(diào)器
OPTIMAL COHERENT DETECTION OF FSK SIGNALS WITH IMBALANCE AMPLITUDES IN THE PRESENCE OF COLORED GAUSSIAN NOISE
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摘要: 本文討論在信號(hào)各頻率振幅受到的衰減不一致并存在有色加性高斯噪聲(IGDF-ACGN)信道條件下,FSK信號(hào)的最佳相干解調(diào)問題?；谑噶勘硎鞠到y(tǒng)模型的方法,導(dǎo)出了最佳解調(diào)器的結(jié)構(gòu)。從理論分析和計(jì)算機(jī)模擬實(shí)驗(yàn)結(jié)果都證明了所導(dǎo)得的最佳解調(diào)器,不僅在IGDF-ACGN信道條件下是最佳的,而且在加性高斯白噪聲(AWGN)信道條件下也是最佳的。文中還導(dǎo)出了相應(yīng)的誤碼率公式,給出了誤碼率數(shù)值計(jì)算和計(jì)算機(jī)模擬曲線。Abstract: The problem of optimal coherent detection of frequency-shift keying (FSK) signals transmitted over an additive colored Gaussian noise channel with imbalance gains in different frequencies(IGDF-ACGN channel) is studied. The structure of the optimal coherent detector is derived. Theoretical analysis and computer simulation results show that the detector is optimal in either additive colored Gaussian noise environment or additive white Gaussian noise environment.
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