Title :
Amplitude estimation of a sinusoid buried in heavy noise using stochastic resonance
Author :
Dasgupta, Samudra ; Sarkar, Shauryadipta ; Nair, Jithun
Author_Institution :
Indian Inst. of Technol., Kharagpur, India
Abstract :
This paper investigates four methods to estimate the amplitude of a sinusoid buried in noise, using the phenomenon of stochastic resonance (SR) to obtain the best estimate. SR is a cooperative effect in which the power in the broadband part of the spectrum is fed in to the output power of the signal frequency. We use a 3-level quantizer in our experiments to quantize the sinusoid buried in noise after variance-controlled AWGN is added to it We estimate the amplitude at the optimum variance, which is obtained from the experimentally obtained SNR data.
Keywords :
AWGN; amplitude estimation; maximum likelihood estimation; nonlinear control systems; quantisation (signal); resonance; signal reconstruction; stochastic processes; 3-level quantizer; SR; amplitude estimation; cooperative effect; maximum likelihood estimation; noise reconstruction; sinusoid noise burial; stochastic resonance; variance-controlled AWGN; AWGN; Additive white noise; Amplitude estimation; Frequency; Gaussian noise; Noise level; Power generation; Signal to noise ratio; Stochastic resonance; Strontium;
Conference_Titel :
India Annual Conference, 2004. Proceedings of the IEEE INDICON 2004. First
Print_ISBN :
0-7803-8909-3
DOI :
10.1109/INDICO.2004.1497702
