Accession Number : AD0165011

Title :   Clipped Correlation to Signal-to-Noise Ratio Meter.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Newman,Howard S. ; Greenough,Roger W.

Report Date : 03 JUL 1973

Pagination or Media Count : 7

Abstract : The patent describes a circuit for converting the output of a clipper correlator to signal-to-noise ratio in a signal from a sonar array, comprising a primary diode and a capacitor in parallel therewith, and a series of resistor-secondary diode combinations. Different resistor-secondary diode combinations approximate different regions of the output of the clipper correlator, thus giving an output representing signal-to-noise ratio of the signal. A modified form of the circuit uses field effect transistors and differential amplifiers as circuit elements.

Descriptors :   *Measuring instruments, *Patents, *Sonar arrays, Signal to noise ratio, Correlation techniques

Subject Categories : Test Facilities, Equipment and Methods
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE