| 周期性平稳过程和数字频谱的计算 |
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| 引用本文： | 陈敏修,酆广增. 周期性平稳过程和数字频谱的计算[J]. 南京邮电大学学报(自然科学版), 1990, 0(1) |
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| 作者姓名： | 陈敏修 酆广增 |
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| 作者单位： | 铁道部铁道科学研究院，南京邮电学院 |
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| 摘 要： | 在通信工程中,通常把数字信号看作弱平稳过程或离散的弱平稳过程,但在严格意义上它并不符合弱平稳过程的条件,它的自相关函数是时间t的周期函数,称为周期性平稳过程,其功率谱仍可用相关函数来定义。本文证明该谱密度与其任一样本函数的谱密度相等,并列举了一些计算多态数字信号功率谱的例子。
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| 关 键 词： | 统计分析 数字信号 周期性信号 谱 |
Periodic wide Sense Stationary Process and Calculations of Its Spectrum |
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| Chen Minxiu. Periodic wide Sense Stationary Process and Calculations of Its Spectrum[J]. JJournal of Nanjing University of Posts and Telecommunications, 1990, 0(1) |
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| Authors: | Chen Minxiu |
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| Affiliation: | Chen Minxiu(Academy of Railway Science) Feng Guangzeng(Department of Radio Engineering) |
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| Abstract: | Digital signals are not wide sense stationary process in the strict sense. But they have some similar features. In this paper, it is proven that their spectra which are defined as Fourier transform of their autocorrelation functions are equal to the spectra of their sample functions. Some examples of spectra calculation are also given. |
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| Keywords: | Statistical analysis Digital signals Periodic signals Spectrum |
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