加权多步波长移相算法研究

波长移相干涉技术通过改变光源的波长实现移相,可以克服硬件移相引入的误差,同时原理上可以实现多组干涉信号的分离。主要应用于大尺寸干涉仪及需要分离多表面干涉信号的系统中。加权多步波长移相算法是其主要的算法,中心思想是通过时域加入合适的窗函数,抑制寄生信号,提出包含轮廓或厚度信息的有用信号。文中介绍其设计思想,进行算法设计,并对一光学件进行了测试和比对。

CORNEAL TOPOGRAPHIC AND PACHY-METRIC CHANGES FOLLOWING TRA-BECULECTOMY

Purpose: To evaluate the corneal topographic and pachymetric changes following subscleral trabeculectomy (SST). Methods: Our study included 10 eyes of 10 patients undergoing SST who had full clinical and ophthalmological examination before SST. Assessment of corneal topographic changes were done using TMS. 1 instruments. The topographic and pachymetric