›› 2011, Vol. 24 ›› Issue (5): 35-.

• Articles • Previous Articles     Next Articles

Application of Z-FFT Transform in Station Demodulation of Cab Signals

 WANG Li-Ping, MIAO Cheng-Wei   

  1. (College of Electronics and Information Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)
  • Online:2011-05-15 Published:2011-05-19

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.

Key words: DSP;Z-FFT;cab signal

CLC Number: 

  • TN911.7