1. Jiang Z D, Zu D L, Gu X F. Quadrature technology in MRI System. Acta Scientiarum Naturalium Universitatis Pekinensis, 2006, 42(3): 320–323
2. Jiang Z D, Zu D L, Gu X F. Design of an MRI quadrature-data acquisition card. Prog Nat Sci, 2005, 16(3): 255–259
3. Hoult D I, Richards R E. The signal-to-noise ratio of the nuclear magnetic resonance experiment. J Magn Reson, 1976, 24: 71–85
4. Zu D L. Magnetic Resonance Imaging (in Chinese). Beijing: Higher Education Press, 2004
5. Roemer P B, Edelstein W A, Hayes C E, et al. The NMR phased array. Magn Reson Med, 1990, 16: 192–225