Generating sensor signals in isotropic noise fields.
Researchers in the signal processing community often require sensor signals that result from a spherically or cylindrically isotropic noise field for simulation purposes. Although it has been shown that these signals can be generated using a number of uncorrelated noise sources that are uniformly spaced on a sphere or cylinder, this method is seldom used in practice. In this paper algorithms that generate sensor signals of an arbitrary one- and three-dimensional array that result from a spherically or cylindrically isotropic noise field are developed. Furthermore, the influence of the number of noise sources on the accuracy of the generated sensor signals is investigated.
Habets
Emanuël A P
EA
School of Engineering, Bar-Ilan University, Ramat-Gan and Department of Electrical Engineering, Technion-Israel Institute of Technology, Haifa, Israel. e.habets@ieee.org
Gannot
Sharon
S
D000162:Acoustics; D000465:Algorithms; D003198:Computer Simulation; D008962:Models, Theoretical; D009038:Motion; D009622:Noise; D012815:Signal Processing, Computer-Assisted; D013997:Time Factors