An Analog System for the Analysis of Random Data Signals up to 10 Kc
David N. Keast · IRE Transactions on Instrumentation · 1962
The analysis of random data signals requires the use of equipment not normally available at most analog data-processing centers. This paper describes a data-processing system which has been designed specifically for the analysis of acoustic and vibration data. The system is capable of determining spectra, cospectrum functions and time correlation coefficients from such measurements.