Title :
Estimation and detection of chirp signals in compound-Gaussian clutter
Author :
Gini, F. ; Verrazzani, L.
Author_Institution :
Dept. of Inf. Eng., Pisa Univ., Italy
Abstract :
The contribution of this paper is the derivation of a GLRT (generalized likelihood ratio test) detector and a suboptimal cyclic-correlation-based estimator of Doppler shift and Doppler rate, the chirp parameters, for a signal with fluctuating random amplitude embedded in correlated compound-Gaussian clutter. The hybrid Cramer-Rao lower bounds (HCRLBs) are also derived for a Swerling I target signal. Simulation examples are provided to show the behavior of the proposed estimator under different non-Gaussian scenarios
Keywords :
Doppler shift; Gaussian processes; chirp modulation; clutter; correlation methods; parameter estimation; signal detection; Doppler rate; Doppler shift; GLRT detector; Swerling I target signal; chirp parameters; chirp signal detection; chirp signal estimation; compound-Gaussian clutter; correlated compound-Gaussian clutter; fluctuating random amplitude; hybrid Cramer-Rao lower bounds; non-Gaussian scenarios; suboptimal cyclic-correlation-based estimator; Amplitude estimation; Chirp; Clutter; Detectors; Doppler radar; Doppler shift; Frequency estimation; Maximum likelihood estimation; Signal detection; Testing;
Conference_Titel :
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4325-5
DOI :
10.1109/ICOSP.1998.770947
