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Study on Real Time Test System for FSK Signal

Wei Xueye Zhang Yong Wang Qiongzhou (College of Electronics and Information Engineering,Northern Jiaotong University, Beijing 100044)  
Considering the characteristic of frequency shift keying(FSK)signal transmitted in the track circuit of electrified railway and high speed railway,a DSP(Digital Signal Processor) based real time automatic information test system is developed.Based on the analysis of the frequency spectrum of FSK signal,a FFT(Fast Fourier Transforms) based frequency measuring scheme is determined.
【Fund】: 铁道部科技基金 运输自动化与通信实验室基金
【CateGory Index】: TP274
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