| 基于Matlab轨道移频信号检测的仿真分析 |
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| 引用本文： | 樊文侠,孙景峰.基于Matlab轨道移频信号检测的仿真分析[J].西安工业大学学报,2008,28(5). |
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| 作者姓名： | 樊文侠 孙景峰 |
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| 作者单位： | 西安工业大学电子信息工程学院 |
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| 摘 要： | 在检测仪器内存和FFT计算长度有限制的情况下,为进一步获得较高的频率分辨率,则需对有用频段进行选频细化分析.将带通抽样技术与Zoom-FFT频谱细化技术相结合,并用Matlab软件对国产18信息轨道移频信号的检测算法进行了仿真验证,表明该检测算法是完全可行的,同时也验证了移频信号基本参数确定方法的正确性,为设计轨道电路移频信号检测仪表提供了依据.
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| 关 键 词： | 移频信号 带通抽样 频率分辨率 Matlab仿真 |
The Simulation and Analysis of the Track Frequency Shift Detection Based on Matlab |
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| Authors: | FAN Wen-xia SUN Jing-feng |
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| Abstract: | With the limit to the detection equipment memory and FFT calculated length in the detection algorithm,the useful frequency band needs to be selected and partially analyzed to obtain a higher frequency resolution.This paper combines the band-pass sampling technology and the spectrum refining technology,and simulates and verifies the detection algorithm of domestic 18 information track circuit frequency shift signal based on the software Matlab.The simulation showes that the detection algorithm is totally feasible.And the accuracy of the basic detecting method of parameters for the frequency shift signals has been verified,which supplies a direction for designing the track circuit frequency shift signal detection instruments. |
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| Keywords: | frequency-shift signal band-pass sampling frequency resolution Matlab simulation |
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