Title :
A New Approach to the Spectrum Analysis of Nonstationary Signals
Author_Institution :
Cornell Aeronautical Laboratory, Inc., of Cornell University, Buffalo, N. Y.
Abstract :
A new approach is presented which allows proper spectral measurements of time-nonstationary signals. The power spectrum is defined on the basis of ensemble averages and therefore contains a time variation when the signals are nonstationary. It is shown that a spectrum analyzer can be designed which measures these time-varying spectra in a nearly optimum manner. Design equations are given and practical considerations are discussed.
Keywords :
Electronic switching systems; Equations; Fourier transforms; Frequency; Gold; Performance analysis; Signal analysis; Signal processing; Smoothing methods; Spectral analysis;
Journal_Title :
Applications and Industry, IEEE Transactions on
DOI :
10.1109/TAI.1963.5407799
