Accession Number:

AD0270739

Title:

A METHOD FOR COMPUTING THE GENERALIZED CIRCULAR ERROR FUNCTION AND THE CIRCULAR COVERAGE FUNCTION

Descriptive Note:

Corporate Author:

NAVAL WEAPONS LAB DAHLGREN VA

Personal Author(s):

• DIDONATO, A. R.
• JARNAGIN, M. P.

Report Date:

1962-01-23

Pagination or Media Count:

111.0

Abstract:

An efficient method is described for the numerical evaluation by a high speed digital computer of the integral of an uncorrelated elliptical Gaussian distribution over a circle centered at the mean of the distribution, VK,c the integral of a circular Gaussian distribution over a circle offset from the mean of the distribution, PR,d. The methods are programmed for both the NORC and the IBM 7090. They yield 6 decimal digit accuracy with an average computation time of 10 milliseconds per case on NORC and 6 milliseconds on the 7090. Two extensive inverse tables are included. One gives the radius K as a function V and c, and the other gives the radius R as a function of P and d.

Descriptors:

• *OPERATIONS RESEARCH
• *STATISTICAL PROCESSES
• *DIGITAL COMPUTERS
• COMPUTER LOGIC
• PROBABILITY
• TERMINAL BALLISTICS
• TABLES(DATA)
• STATISTICAL DISTRIBUTIONS
• NUMERICAL METHODS AND PROCEDURES
• GAUSSIAN QUADRATURE
• AREA BOMBING

Subject Categories:

• Statistics and Probability
• Fire Control and Bombing Systems
• Operations Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE