| 多进制基带信号功率谱密度的仿真分析 |
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| 引用本文： | 宋军,徐慧. 多进制基带信号功率谱密度的仿真分析[J]. 计算机仿真, 2009, 26(6): 131-133,190 |
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| 作者姓名： | 宋军 徐慧 |
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| 作者单位： | 南京林业大学信息学院,江苏,南京,210037;南京林业大学信息学院,江苏,南京,210037 |
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| 摘 要： | 随着信息技术的发展,多进制数字基带信号的应用越来越广泛.而分析其频谱特性对多进制数字基带信号的应用十分必要.以二进制数字基带信号为基础,利用交变波和稳态波分解法首先分析了三进制数字基带信号的功率谱密度,然后推广分析了M(M≥2)进制数字基带信号的功率谱密度特性.最后分别选取二进制、三进制和四进制数字基带信号用Mat-hb平台仿真分析了其功率谱密度,结果显示多进制数字基带信号的频谱一般由离散谱和连续谱组成,但在特定的条件下,其频谱中将只存在连续谱成分,而不存在离散谱.仿真结果为多进制数字基带信号的分析和应用提供了有益的参考.
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| 关 键 词： | 基带信号 功率谱密度 仿真 多进制 |
Simulation of Multi-state Digital Baseband Signal's Power Spectral Density |
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| SONG Jun,XU Hui. Simulation of Multi-state Digital Baseband Signal's Power Spectral Density[J]. Computer Simulation, 2009, 26(6): 131-133,190 |
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| Authors: | SONG Jun XU Hui |
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| Affiliation: | College of Information Science and Technology;Nanjing Forestry University;Nanjing Jiangsu 210037;China |
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| Abstract: | With the development of information technology,the multi-state baseband signals are widely applied.It's essential to analyse the spectrum of multi-state digital baseband signals.Based on binary digital baseband signal,the three-state digital baseband signal's power spectral density was analyzed by the method of dividing into alternating wave&steady wave,further more,the multi-state digital signal's power spectral density was analyzed.At last,binary base-band signal together with three-state one and four-sta... |
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| Keywords: | Baseband signal Spectrum Simulation Multi-state |
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