| 功率谱估计在多载波调制解调中的应用及仿真 |
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| 引用本文： | 王振朝,师洁,岳莹昭. 功率谱估计在多载波调制解调中的应用及仿真[J]. 信息技术, 2006, 30(9): 5-7 |
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| 作者姓名： | 王振朝 师洁 岳莹昭 |
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| 作者单位： | 河北大学电信学院,保定,071002 |
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| 基金项目： | 河北大学校科研和教改项目 |
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| 摘 要： | 介绍了三种目前应用广泛的功率谱估计的典型算法。提出一种将功率谱估计应用在调制解调领域的技术。通过Matlab仿真了调制解调过程，分析了三种功率谱估计算法对解调误码性能的影响。证明通过AR参考模型方法对接收信号进行功率谱估计，能够得到较为平滑的谱曲线，解调时能更有效的抑制宽带噪声。
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| 关 键 词： | 功率谱估计 解调 Matlab仿真 误码性能 |
| 文章编号： | 1009-2552(2006)09-0005-03 |
| 修稿时间： | 2006-03-06 |
Application and simulation of power spectrum estimate used in multi-carrier modulation |
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| WANG Zhen-chao,SHI Jie,YUE Ying-zhao. Application and simulation of power spectrum estimate used in multi-carrier modulation[J]. Information Technology, 2006, 30(9): 5-7 |
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| Authors: | WANG Zhen-chao SHI Jie YUE Ying-zhao |
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| Abstract: | In this thesis,three kinds of popular typical power spectrum algorithms are introduced.A demodulation technique based on power spectrum estimation is proposed.By simulating the modulation process using MATLAB,the influence of different power spectrum estimation algorithm to the bit-error-rate performance of the demodulation technique is analyzed.It proves that the modulated signal spectrum curve obtained by AR model-based method is smoother.It restrains the wideband noise efficiently. |
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| Keywords: | power spectrum estimate demodulation simulation based on MATLAB BER performance |
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