1. Ibrahim, M.K., 1987. New high-resolution pseudospeetrum estimation method. IEEE Trans. Acoust., Speech, Signal Process., ASSP-35: 1071–1072.
One of the most popular techniques for high-resolution power spectrum estimation is the Capon maximum likelihood method (MLM). It has been observed and verified analytically for large data records that the spectral estimate of MLM exhibits less variance, but also less resolution, than the AR spectral estimate. A new pseudospectrum estimation is presented here. Simulation results show an increase in the resolution and no significant increase in the variance of the new spectra when compared to MLM. Although MLM was derived originally for wavenumber estimation, it is stated here in a real-time series context. But the treatment can be extended easily to wavenumber estimation.