1. Ulrych, T.J., 1972. Maximum entropy power spectrum of truncated sinusoids. J. Geophys. Res., 77: 1396–1400.
The frequency shifts observed in the power spectra of truncated sinusoids, when the spectra are computed by using the periodogram, are avoided when the power spectra are determined by means of a maximum-entropy algorithm. However, cf. Chen and Stegen (1974). Furthermore, as demonstrated by the examples given, the :MEM resolution of the spectral peak is very striking. After a brief review of :MEM, it is stated that the significant point about this technique is that theprediction-error-filter coefficients are determined by using only the available data. No null extension to the data is required for estimating the autocorrelation values for lags greater than zero.