Title :
Combining capon and APES noise covariance estimates for spectral estimation for ISAR applications
Author :
Kalognomos, Georgios ; Frangos, Panayiotis
Author_Institution :
Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece
Abstract :
Techniques concerned with the problem of complex spectral estimation are of great importance to many modern applications, one of which is the inverse synthetic aperture radar (ISAR) imaging, In this paper we study a variation of the non-parametric Amplitude and Phase Estimation of a sinusoid (APES) method that is produced by a parameterization of its noise covariance matrix Q. Computer code using the MATLAB software was produced for the study of the modified estimator and numerical examples using 1-D synthetic data are presented to demonstrate several of its properties.
Keywords :
amplitude estimation; phase estimation; radar imaging; spectral analysis; synthetic aperture radar; APES noise covariance estimates; Capon noise covariance estimates; ISAR applications; amplitude and phase estimation; amplitude estimation; inverse synthetic aperture radar imaging; noise covariance matrix; nonparametric estimation; phase estimation; spectral estimation; Amplitude estimation; Application software; Covariance matrix; Finite impulse response filter; Frequency estimation; Modems; Noise level; Phase estimation; Radar signal processing; Signal processing algorithms;
Conference_Titel :
Recent Advances in Space Technologies, 2005. RAST 2005. Proceedings of 2nd International Conference on
Print_ISBN :
0-7803-8977-8
DOI :
10.1109/RAST.2005.1512656
