Chinese Journal of Magnetic Resonance ›› 1998, Vol. 15 ›› Issue (4): 389-394.

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ALTERNATE SAMPLING AND ITS FFT TECHNIQUE

Wu Xianqiu2, Wu Xuewen1   

  1. 1. Analytical Center, East China Normal University, Shanghai 200062;
    2. Physics Department, South China Normal University, Guangzhou 510631
  • Received:1998-02-11 Revised:1998-04-20 Published:1998-08-05 Online:2018-01-13

Abstract: Alternate sampling was used when there is only one analogue-to-digital converter in the quadrature dual channels receiver. Because the real part and the imaginary part are not acquired at the same time, there is the artifact on the spectrum of the alternate-sampled data. An Imagford algorithm is proposed for the elimination of the artifact and used in the home built micro NMR imaging system.

Key words: Alternate Sampling, FT, NMR Imaging