At the same time, we refrain mirror frequency effectively with the method of digital quadraturemodulation (DQM).
同时，由于采用了数字正交调制，从而有效地提高了镜频抑制。
2
The purpose of quadraturemodulation is to generate the SSB RF exciting pulse that avoids exciting it's mirror slice.
正交调制的目的是产生单边带RF激发脉冲，以避免激发镜像层面。
3
It is clearly clarified the conceptions of quadraturemodulation, quadrature exciting, quadrature receiving, and quadrature demodulation in the MRI system.