| 一种准最佳数字传输系统的性能分析与实现 |
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| 引用本文： | 冯钢,吴诗其,李乐民.一种准最佳数字传输系统的性能分析与实现[J].电子科技大学学报(社会科学版),1990(5). |
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| 作者姓名： | 冯钢 吴诗其 李乐民 |
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| 作者单位： | 电子科技大学信息所
(冯钢，吴诗其)，电子科技大学信息所(李乐民) |
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| 摘 要： | 提出一种在数字传输系统中易于实现的发、收滤波器特性的准最佳分配方案:将信道升余弦滚降特性和宽码输入补偿网络特性都以平方根形式均分于发、收两端。分析和计算了这种系统的等效信噪比损失;用计算机优化方法设计了形成滤波器;最后计算了此系统残存符号间干扰所引起的损失。
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| 关 键 词： | 数字传输系统 形成滤波器 准最佳系统 优化设计 符号间干扰 差错概率 |
THE PERFORMANCE ANALYSIS AND REALIZATION OF A KIND OF SUBOPTIMUM DIGITAL TRANSMSSION SYSTEM |
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| Feng Gang,Wu Shiqi,Li Leming.THE PERFORMANCE ANALYSIS AND REALIZATION OF A KIND OF SUBOPTIMUM DIGITAL TRANSMSSION SYSTEM[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1990(5). |
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| Authors: | Feng Gang Wu Shiqi Li Leming |
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| Institution: | Institute of Information System |
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| Abstract: | A suboptimum scheme for easily realizing the decomposed transmitting andreceiving filter characteristics in digital transmission systems is suggested.The x/sinx com-pensation frequency response is decomposed equally to both transmitter and receiver.Thedegradation of error rate performance of the suboptimum system is analyzed and compu-ea Then the shaping filters for this system are designed using computer optimizationmethod,and these filters are of good performance.At last,the degradation of error rateperformance effected by the residual intersymbol interference of this system is computed. |
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| Keywords: | digital transmission system shaping filter suboptimum system optimization design intersymbol interference bit error rate |
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