由于采集部分K空间数据成像是对连续频率MR信号的截断，导致经过傅立叶变换后的重建图像中出现截断伪影。
Sampling segmented K-space data makes a truncation of MR signal which is with continuous frequencies, leads to the truncation artifact in the reconstruction images after Fourier transform.
根据这一结论，光束在某些满足一定条件的充满增益或损耗介质的高斯反射镜腔的传输，可以视作连续的复数阶傅立叶变换过程。
The beam propagation between two Gaussian reflectivity mirrors filled with gain medium can be regarded as a complex-order Fourier transform process.
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