Title :
Power spectrum estimation of complex signals: group delay approach
Author :
Narasimhan, S.V. ; Potkin, E.I. ; Swamy, M.N.S.
Author_Institution :
Nat. Aerosp. Lab., Bangalore, India
fDate :
12/9/1999 12:00:00 AM
Abstract :
A method for estimating the power spectrum of a complex signal (CS) realised by the group delay (GD) for a CS and the modified GD concept is proposed. This extends the performance advantages of the modified GD applicable to a real signal to a complex signal. A significant reduction in variance without any compromise in frequency resolution over that of the periodogram is found
Keywords :
delay estimation; signal processing; spectral analysis; complex signals; frequency resolution; group delay approach; power spectrum estimation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19991441
