Title :
Estimation of the number of signals in the presence of color noise
Author :
Gan, Lu ; Qi, Xin ; Li, Liping ; Zhang, Huaguo
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, a new method to detect the number of signals in the presence of color noise is proposed. Firstly, pseudocovariance matrix is constructed using the covariance of sensors. Then, the information theoretic criteria and Gerschgorin disks are used to estimate the number of signals. Simulation results show that the proposed AIC and MDL can work well in the presence of color noise, while the classical ones fail. What´s more, the proposed GDE method has superior performance to the original GDE.
Keywords :
array signal processing; covariance matrices; direction-of-arrival estimation; signal detection; AIC; DOA estimation; GDE; Gerschgorin disk estimation; MDL; color noise; information theoretic criteria; pseudocovariance matrix; sensor array; signal detection; signal estimation; Colored noise; Covariance matrix; Data models; Direction of arrival estimation; Gallium nitride; Narrowband; Sensor arrays; Signal detection; Signal processing; Signal processing algorithms;
Conference_Titel :
Communications, Circuits and Systems, 2009. ICCCAS 2009. International Conference on
Conference_Location :
Milpitas, CA
Print_ISBN :
978-1-4244-4886-9
Electronic_ISBN :
978-1-4244-4888-3
DOI :
10.1109/ICCCAS.2009.5250500
