• DocumentCode
    2956835
  • Title

    A fully digital feedforward demodulator for vector signal analyzers

  • Author

    Chi, Chi-Mien ; Kao, Pin-Wen ; Liu, Woo-Yang

  • Author_Institution
    Center for Meas. Stand., Ind. Technol. Res. Inst., Hsinchu, Taiwan
  • Volume
    2
  • fYear
    2003
  • fDate
    18-20 Sept. 2003
  • Firstpage
    766
  • Abstract
    This article describes an all-digital feedforward demodulator for use in implementing vector signal analyzers. An universal architecture is proposed for demodulating quadrature phase shift keying (QPSK) and Gaussian frequency shift keying (GFSK) modulated signals with a wide variety of symbol rates. The demodulator employs an open loop structure to achieve clock synchronization, frequency offset, and phase offset compensation.
  • Keywords
    demodulators; feedforward; frequency shift keying; quadrature phase shift keying; synchronisation; GFSK modulated signals; Gaussian frequency shift keying; QPSK; clock synchronization; digital feedforward demodulator; frequency offset; phase offset compensation; quadrature phase shift keying; symbol rates; universal architecture; vector signal analyzers; Bandwidth; Demodulation; Digital filters; Digital systems; Filtering; Finite impulse response filter; Frequency; IIR filters; Low pass filters; Signal analysis;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the 3rd International Symposium on
  • Print_ISBN
    953-184-061-X
  • Type

    conf

  • DOI
    10.1109/ISPA.2003.1296379
  • Filename
    1296379