Author: J. S. B. Clark,

Agricultural Research Council's Poultry Research Center,

Edinburgh, Scotland

Source Language: PAL-D

Memory used: 110₈ words

Special Hardware Required: See abstract

Abstract: The subroutine may be called to calculate the y-ordinates of

a polarity-quantized autocorrelogram in real-time. It is intended for use

on a PDP-8 processor with A/D converter or zero-level crossing detector,

real-time clock and visual display. The execution time lies between 20

usec/sampled point and 10 usec/sampled point depending on several

options described. The subroutine is called once between samples of

signal, and updates a single precision store which may be output directly

on to a visual display unit as an autocorrelogram.

Media Price Code: D2, F5, G5

Catalog: August 1978