Research for Computer Programs
June 1, 1974
The characteristics and operational capabilities of the CNA Scope operating system are described in this paper. Emphasis is placed on output backgrounding and the use of random-access equipment.
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June 1, 1974
This paper is intended as a day-to-day guide to the use of B34TCNA, a program that calculates multiple linear regression in a step-wise manner, inserting at each step that variable which is eligible and has the highest partial correlation with the dependent variable. This guide tells how to punch control cards and implement the options available in the program.
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June 1, 1974
This research contribution describes an iterative Monte Carlo computer simulation of fleet defense by carrier-based aircraft. The model is completely general in regard to the size of the committed forces and the capabilities of their weapons, and it allows some diversity in the composition of the defending interceptor force. It also permits consideration of a variety of tactical options.
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June 1, 1974
In this paper, a model is described which determines the effect of shortrun repair resources upon the process time, and hence the pipeline of, F-4s at North Island.
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June 1, 1974
The Code 50 Nuclear Exchange Model is a war game model produced by the LAMBDA Corporation. This research contribution derives and explains the basic mathematical models used in the computer programs of that model, including models of missile and bomber penetration as well as damage calculation, weapon allocation, and kill probability models. Model implementation and integration into the Code 50 program are also demonstrated.
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June 1, 1974
The Fisher Exact Probability Test is a non-parametric technique for testing whether or not two samples could reasonably be expected to have originated from the same population. This paper defines the test, demonstrates its use, and explains a Fortran program which was developed to calculate the required values.
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June 1, 1974
This paper documents two sets of data which describe some aspects of Arab-Israeli relations between 1 July 1949 and 30 June 1969. The sources, coding procedures and possible biases incorporated in each set are discussed. A computer program called 'Mid East' is documented. It can be used to process one of the data sets.
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June 1, 1974
A computer program employing a Monte Carlo simulation is presented to determine the probability of destroying a rectangular target with air-to-ground gunnery. The effect of correlation of successive aim points is considered, and bivariate normal aiming error and ballistic dispersion are assumed. Included in the report are a flow chart, a listing of the FORTRAN program, and a sample program.
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June 1, 1974
In this paper, the reliability of a complex system is investigated. Special cases of the system include the 'spare parts' or 'standby redundancy' problem and the 'repair' problem. Also included in the system is the opportunity for 'cannibalization'. A theorem is given indicating the proper use of this activity. The spare parts problem and the repair problem are analyzed separately. Methods of combining the two analyses are then given in order to obtain bounds and approximations to total system reliability.
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June 1, 1974
A Monte Carlo simulation program has been written in FORTRAN to compute hit probabilities of a pattern of weapons against a maneuvering target. The aimpoint is specified, and a bivariate normal aiming error is assumed for the weapon pattern; individual weapons in the pattern are assumed to have bivariate normal (ballistic) dispersion errors. Target initial velocity, time spent in a straight leg, turning radius, and time spent in the turn are specified, and a normal distribution are included. Flow charts, program listing, and sample inputs and outputs are provided.
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