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

页码：241 / 244

页数：4

共 6 条

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APPLIED OPTICS, 1992, 31 (28) :6003-6010

[2]

DANDLIKER R, 1992, 8TH P INT C OFS 92 M, P53

[3] COHERENCE TUNED FIBER OPTIC SENSING SYSTEM, WITH SELF-INITIALIZATION, BASED ON A MULTIMODE LASER DIODE [J].

GERGES, AS ;

NEWSON, TP ;

JACKSON, DA .

APPLIED OPTICS, 1990, 29 (30) :4473-4480

[4]

LEFEVRE HC, 1990, 7TH P OPT FIBR SENS, V245, P345

[5]

NING DN, 1993, IEEE PHOTONIC TECH L, V5, P1350

[6] SYNTHESIZED SOURCE FOR WHITE-LIGHT SENSING SYSTEMS [J].

RAO, YJ ;

NING, YN ;

JACKSON, DA .

OPTICS LETTERS, 1993, 18 (06) :462-464

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