基于DSP的轨道移频信号解调实现

Abstract

Abstract:

This paper proposes the FSK signal which receives and demodulates the ZPW-2000A with the dual TMS320F2812 as the core.The forepart samples the FSK signal with the internal A/D of DSP by signal conditioning.The calculation of FFT demodulates the carrier frequency and then Z-FFT calculates the low frequency,and finally through the port of DSP's SPI the two outputs are compared.If they are the same,the signal is output.This design uses a hot standby to improve the reliability of the system.The results show that the system has high frequency resolution and good real-timeness.

Key words: DSP;FSK;ZPW2000A

CLC Number:

TN911.72

MIAO Cheng-Wei, CHEN Guang-Wu, GAO Jian-Guo, WANG Li-Ping. The Realization of the Demodulation of the Frequency-shift Track Based on DSP[J]., 2011, 24(3): 47-.

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The Realization of the Demodulation of the Frequency-shift Track Based on DSP

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