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提高卫星通信信道传输效率的新途径本 文 结 合 V SAT卫星通信系统设计中涉及卫星通信传输技术极为重要的
信道编码与调制解调方式，探讨了各种新型的卫星信道编码与调制解调技术，
它们的原理及在卫星通信中的应用。在数字调制中，信号传输质量主要取决于
比特差错率BER (Bit Error Rate)，因此要尽可能采用相同的每比特信号能量与
噪声功率谱密度比(Eb/N.)的条件下，BER低的调制方式，以节省卫星功率
另外频带利用率要尽可能的高，以节省宝贵的卫星频带。本文还对各种不同的
差错编码与调制技术进行了实验和详细的性能比较。-improve satellite communications channel transmission efficiency of new ways this paper V SAT satellite communications system design involving Wei Star Communication Technology extremely important channel coding and modulation and demodulation, explore a variety of new satellite channel coding and modulation and demodulation techniques, their principles and satellite communications applications. Digital modulation, signal transmission depends on the quality of the main bit error rate BER (Bit Error Rate). therefore possible to use the same energy per bit signal with noise power spectral density ratio (Eb / N.), under the condition BER low modulation mode to save power satellite bandwidth utilization addition to the possible high to save valuable satellite frequency bands. This paper is als
信道编码与调制解调方式，探讨了各种新型的卫星信道编码与调制解调技术，
它们的原理及在卫星通信中的应用。在数字调制中，信号传输质量主要取决于
比特差错率BER (Bit Error Rate)，因此要尽可能采用相同的每比特信号能量与
噪声功率谱密度比(Eb/N.)的条件下，BER低的调制方式，以节省卫星功率
另外频带利用率要尽可能的高，以节省宝贵的卫星频带。本文还对各种不同的
差错编码与调制技术进行了实验和详细的性能比较。-improve satellite communications channel transmission efficiency of new ways this paper V SAT satellite communications system design involving Wei Star Communication Technology extremely important channel coding and modulation and demodulation, explore a variety of new satellite channel coding and modulation and demodulation techniques, their principles and satellite communications applications. Digital modulation, signal transmission depends on the quality of the main bit error rate BER (Bit Error Rate). therefore possible to use the same energy per bit signal with noise power spectral density ratio (Eb / N.), under the condition BER low modulation mode to save power satellite bandwidth utilization addition to the possible high to save valuable satellite frequency bands. This paper is als
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