Accession Number:

ADD008787

Title:

CCD Analog and Digital Correlators.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1981-05-12

Pagination or Media Count:

20.0

Abstract:

A charge-coupled device CCD analog and digital correlator comprises identical modules, each of which is a simple analog CCD correlator with digital input and output. Circuits are included 1 for injecting charges proportional to the voltage sequences sn and rn, where sn refers to the input signal, and rn relates to a reference signal, against which the input signal is correlated 2 for non-destructively sensing and tapping each sample sn and rn 3 for forming the summation sn rn 4 and finally for squaring sn, rn, and sn rn in simple, floating gate MOSFET amplifiers. The amplifiers operate in their saturation region, and have outputs proportional to s sqn, r sqn, and sn rn sq, which are then fed into a differential amplifier to produce snrn.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE