| 一种轨道移频信号解调的新方法 |
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| 引用本文： | 王安,张芳芳,罗晓斌. 一种轨道移频信号解调的新方法[J]. 测控技术, 2008, 27(5): 45-47 |
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| 作者姓名： | 王安 张芳芳 罗晓斌 |
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| 作者单位： | 西北工业大学,自动化学院,陕西,西安,710072;西北工业大学,自动化学院,陕西,西安,710072;西北工业大学,自动化学院,陕西,西安,710072 |
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| 摘 要： | 对铁路轨道移频信号的频谱进行了分析,根据其频谱特点,提出了基于欠采样的FFT检测方法,并给出了计算原始频谱和上下边频的新方法,分析了采样频率的选取以及欠采样前后信号频谱之间的关系,同时对频率分辨率和精度进行了研究。此方法简单易行,具有很高的工程实用价值。
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| 关 键 词： | 移频信号 欠采样 采样频率 频谱关系 频率分辨率 |
| 文章编号： | 1000-8829(2008)05-0045-03 |
| 修稿时间： | 2007-07-02 |
A New Demodulation Method for FSK Signal |
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| WANG An,ZHANG Fang-fang,LUO Xiao-bin. A New Demodulation Method for FSK Signal[J]. Measurement & Control Technology, 2008, 27(5): 45-47 |
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| Authors: | WANG An ZHANG Fang-fang LUO Xiao-bin |
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| Abstract: | After analyzing the spectrum of the FSK signal,FFT detection technic based on undersampling was put forward,and a new method to calculate original spectrum,upper frequency and lower frequency was presented,the selection of sampling rate and the transformation of spectrum after sampled were analyzed,and the frequency resolution and detecting accuracy were studied.This method is of high maneuverability and has the actual application value. |
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| Keywords: | FSK undersampling sampling rate spectrum relationship frequency resolution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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