| Z-FFT变换在站内轨道信号解调中的应用 |
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| 引用本文： | 王丽萍,苗成伟.Z-FFT变换在站内轨道信号解调中的应用[J].电子科技,2011,24(5):35-37. |
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| 作者姓名： | 王丽萍 苗成伟 |
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| 作者单位： | (兰州交通大学 电子信息工程学院,甘肃 兰州 730070) |
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| 基金项目： | 铁道部重点基金资助项目 |
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| 摘 要： | 提出了基于Z-FFT变换解调站内ZPW-2000A轨道电路信号,实现站内闭环电码化机车信号的实时检测.该设计以双路TMS320F2812的DSP为硬件核心,双路DSP同时经过Z-FFT变换解调出低频和载频信号,通过DSP的SPI口实时对解调出的信息进行比较,提高了系统的可靠性.
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| 关 键 词： | DSP Z-FFT 机车信号 |
Application of Z-FFT Transform in Station Demodulation of Cab Signals |
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| Wang Liping,Miao Chengwei.Application of Z-FFT Transform in Station Demodulation of Cab Signals[J].Electronic Science and Technology,2011,24(5):35-37. |
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| Authors: | Wang Liping Miao Chengwei |
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| Affiliation: | (College of Electronics and Information Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China) |
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| Abstract: | Based on Z-FFT transform demodulates station＇s ZPW-2000A track circuit signal,the closed loop detection of locomotive＇s signal code of the station in real time is realized.The design is based on the dual cores of the TMS320F2812 DSP.Z-FFT transform demodulates the low frequency and carrier frequency signal in the dual DSP,and compare information demodulated through the SPI port of DSP in real-time,thereby greatly enhancing the system reliability. |
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| Keywords: | DSP Z-FFT cab signal |
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