Measurement of probabilities and correlations with a storage tube

A new approach to the measurement of the statistical characteristics of physical data is presented. This approach exploits a novel use of a storage oscilloscope of the bistable type to display equiprobability lines on the oscilloscope screen. The first- and second-order probability density and distribution functions and the autocorrelation and cross-correlation functions of stationary random processes can be measured. Although the accuracy of the methods is limited, they provide a convenient "quick look" at the statistical characteristics of physical data. The frequency range is quite large, extending to megahertz in all cases.