SAW-CCD ACCUMULATING CORRELATOR

被引：4

作者：

SMYTHE, DL

RALSTON, RW

STERN, E

机构：

[1] Lincoln Laboratory, Massachusetts Institute of Technology, Lexington

来源：

APPLIED PHYSICS LETTERS | 1979年 / 34卷 / 10期

关键词：

D O I：

10.1063/1.90638

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new analog-signal-processing device is reported in which a charge-coupled device (CCD) is coupled to a piezoelectric surface acoustic wave (SAW) delay line across a 300-nm gap. The CCD samples multiply, accumulate, and read out the cross-correlation function of two wide-band SAW input signals which counterpropagate on the delay line. A signal-processing gain of 30 dB at a bandwidth of 20 MHz has been observed by correlating biphase modulated pseudonoise waveforms of 100-μs duration in the presence of Gaussian noise. This compact hybrid structure provides 300 discrete samples of a 7-μs segment of the correlation function.

引用

页码：620 / 622

页数：3

共 6 条

[1] SURFACE ACOUSTIC-WAVE TAPPED CORRELATOR USING TIME INTEGRATION [J].

MENAGER, O ;

DESORMIERE, B .

APPLIED PHYSICS LETTERS, 1975, 27 (01) :1-2

[2]

Ralston R. W., 1977, 1977 Ultrasonics Symposium Proceedings, P623, DOI 10.1109/ULTSYM.1977.196909

[3]

Smythe D. L., 1978, 1978 Ultrasonics Symposium Proceedings, P16, DOI 10.1109/ULTSYM.1978.196995

[4]

SMYTHE DL, 1978, APPL PHYS LETT, V33, P1025, DOI 10.1063/1.90255

[5]

SMYTHE DL, 1978, 1978 INT C APPL CCDS

[6]

Yao I. W., 1978, 1978 Ultrasonics Symposium Proceedings, P87, DOI 10.1109/ULTSYM.1978.197010

← 1 →