- Other techniques that do not rely on periodograms are presented in the spectral density estimation article.
- After the war, he worked on the theory and practice of time series analysis, and conclusively demonstrated ( with the meager computing resources available at the time ) that unsmoothed sample periodograms were unreliable estimators for the population spectrum.
- In 1963, J . F . M . Barning of Mathematisch Centrum, Amsterdam, handled unequally spaced data by similar techniques, including both a periodogram analysis equivalent to what is now referred to the Lomb method, and least-squares fitting of selected frequencies of sinusoids determined from such periodograms, connected by a procedure that is now known as matching pursuit with post-backfitting or orthogonal matching pursuit.
- It's difficult to find periodograms in a sentence. 用periodograms造句挺难的