Several Questions in the Selection of Structure of Flight Control Computers.

摘要

A mathematical approach is proposed for selecting optimum computers for flight control systems on the basis of their speed of computation, their productivity, and their effectiveness. It is stated at the beginning that only digital computers should be considered. The computers should be selected to suit the best for a certain class of problems. The speed is defined as the number of average operations performed in a unit of time during the solution of a typical problem and it can be expressed by a given equation. This method does not take into account the complexity of particular operations which can be taken care of by introducing a universal algorithmic unit of problem complexity. The given equation would change. Since the speed may vary from problem to problem, it is necessary to find a nom for a group of problems representing the certain class for which the computer is being selected. At a given reliability in solving a certain group of problems, the mathematical expectation of a random quantity is defined. The productivity can be defined as the ratio of the volume of calculating tasks required to solve a problem to the time lost in solving the problem. It can be expressed by a given equation. (Author)