System for generating signals subject to statistically random frequency perturbations

摘要

This system generates signals which vary randomly in frequency. The system includes a digital pulse generator generating multibit digital numbers varying randomly according to an encoded statistical distribution pattern. A first source of digital signals is connected to the pulse generator which perturbates the signals in frequency and applies them to an adder. Another source of digital signals connected to the adder combines with the perturbated first signal. A digital integrator connected to the pulse generator triggers release of the perturbated first signals and converts the combined perturbated signals to multibit outputs which may be applied to digital-to-analog converters, and in turn to frequency modulators to produce analog signals perturbated in accordance with the statistical distribution pattern.