CENTRAL FRINGE IDENTIFICATION IN A WHITE-LIGHT INTERFEROMETER USING A MULTI-STAGE-SQUARING SIGNAL-PROCESSING SCHEME

被引：11
|
作者：
WANG, Q
NING, YN
PALMER, AW
GRATTAN, KTV
机构：
[1] Department of Electrical, Electronic and Information Engineering, City University, London
来源：
OPTICS COMMUNICATIONS | 1995年 / 117卷 / 3-4期
关键词：
D O I：
10.1016/0030-4018(95)00140-4
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new signal processing scheme for central fringe identification in a white light interferometer is described. With the use of a simple, fast and low-cost multi-stage-squaring processing unit, the central fringe in the output fringe pattern can be considerably enhanced and the SNR(min) required to identify the central fringe can be reduced from about 30 dB to 17 dB in a practical application.
引用
收藏
页码：241 / 244
页数：4
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