Title :
Cramer-Rao lower bound for parametric estimation of quantized sinewaves
Author :
Moschitta, Antonio ; Carbone, Paolo
Author_Institution :
Dipt. di Ingegneria Elettronica e dell´´Informazione, Universita degli Studi di Perugia, Italy
Abstract :
In this paper, the Cramer-Rao Lower Bound (CRLB) for the parametric estimation of quantized sinewaves is analyzed, including the effect of ADC noise. An accurate model based on the statistical properties of quantized data is presented, which keeps into account both the effects of the finite ADC resolution and of quantizer overloading phenomena, at a low computational cost. Then, the model is validated by comparing obtained results with the CRLB based on the ADC uniform noise model.
Keywords :
AWGN; parameter estimation; probability; quantisation (signal); ADC noise; Cramer-Rao lower bound; Gaussian overall noise approximation; additive white Gaussian noise; dynamic range; finite ADC resolution; low computational cost; parametric estimation; quantized data probability density; quantized sinewaves; quantizer overloading; sinusoidal signals; AWGN; Additive white noise; Dynamic range; Gaussian noise; Quantization; Signal resolution; Sonar applications; Sonar detection; Telecommunication computing; Testing;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE
Print_ISBN :
0-7803-8248-X
DOI :
10.1109/IMTC.2004.1351414
