Title :
Noise modeling for nearfield array optimization
Author :
Abhayapala, Thushara D. ; Kennedy, Rodney A. ; Williamson, Robert C.
Author_Institution :
Inst. of Adv. Studies, Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
An exact series representation for a nearfield spherically isotropic noise model is introduced. The proposed noise model can be utilized effectively to apply well-established farfield array processing algorithms for nearfield applications of sensor arrays. A simple array gain optimization is used to demonstrate the use of the new noise model.
Keywords :
array signal processing; noise; optimisation; series (mathematics); array gain optimization; exact series representation; farfield array processing algorithms; nearfield applications; nearfield array optimization; nearfield spherically isotropic noise model; noise modeling; sensor arrays; Acoustic noise; Acoustic sensors; Array signal processing; Design optimization; Gaussian noise; Reverberation; Sensor arrays; Speech; Stochastic resonance; Teleconferencing;
Journal_Title :
Signal Processing Letters, IEEE
