摘要
通过逐个周期地、有规律地改变相干本振(COHO)的相位,以使高次回波在频域上迁移一段确知距离的方法,被称为COHO移相法。本文通过引入移相因子、移相序列、移相模式等概念,阐述了COHO移相法的工作原理。为便于直接运用,本文给出了几个实例。
Changing regularly the initial phase of COHO on period to period basis, the shifting distance of range ghosts in frequency domain can be certain. This method is called CO-HO-phaseshift. Its principle is interpreted by introducing concepts of phaseshift factor,phase-shift series and phaseshift model. In addition,for the purpose of direct use several COHO-phase-shift examples are given in this paper.
