Spectrum: spectral analysis of unevenly spaced paleoclimatic time series

The use of fast Fourier transform for the estimation of power spectra: A method based on time averaging over short, modified periodograms

P. D. Welch · IEEE Transactions on Audio and Electroacoustics · 1967 · 11.5K citations

Engineering, Measurement, Spectrum Estimation +18

On the use of windows for harmonic analysis with the discrete Fourier transform

F.J. Harris · Proceedings of the IEEE · 1978 · 7.1K citations

Numerical Analysis, Engineering, Spectrum Estimation +16

Studies in astronomical time series analysis. II - Statistical aspects of spectral analysis of unevenly spaced data

J. D. Scargle · The Astrophysical Journal · 1982 · 7K citations

Least-squares frequency analysis of unequally spaced data

Nick Lomb · Astrophysics and Space Science · 1976 · 5.5K citations

Engineering, Least-squares Frequency Analysis, Group Frequency +5

Spectral Analysis and its Applications.

Walter Freiberger, Gwilym M. Jenkins, Donald G. Watts · Journal of the American Statistical Association · 1969 · 5K citations

Spectral Theory, Engineering, Spectral Analysis +5