ACOUSTOOPTIC REAL-TIME 2-CRYSTAL CORRELATOR

被引：6

作者：

BERG, NJ

UDELSON, BJ

LEE, JN

KATZEN, E

机构：

[1] Harry Diamond Laboratories, Adelphi

来源：

APPLIED PHYSICS LETTERS | 1978年 / 32卷 / 02期

关键词：

D O I：

10.1063/1.89945

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A real-time correlator has been developed that utilizes successive acousto-optic interactions in two adjacent piezoelectric crystals (lithium niobate, LiNbO3, and bismuth germanium oxide, BGO) having surface-acoustic-wave (SAW) propagation velocities that differ by almost a factor of 2. Complex waveforms, such as FM chirps and Barker codes, have been correlated successfully. A large time-bandwidth product (∼3000) was obtained, and a 40-dB dynamic range was shown to be feasible. The use of this two-crystal device to obtain either pulse expansion or time inversion of a signal also was demonstrated.

引用

页码：85 / 87

页数：3

共 9 条

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[2]

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[8] HIGH-PERFORMANCE ACOUSTOOPTIC GUIDED-LIGHT-BEAM DEVICE USING .2. TILTING SURFACE ACOUSTIC-WAVES [J].

TSAI, CS ;

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APPLIED PHYSICS LETTERS, 1975, 26 (04) :140-142

[9]

WANG WC, 1975, P IEEE ULTRASONICS S, P186

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