Title :
Electromagnetic degrees of freedom in the presence of noise
Author :
Xu, J. ; Janaswamy, R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA
Abstract :
This paper presents a numerical technique with rigorous mathematical background to evaluate the average EM spatial DOF number in noisy multiple scattering environments. This technique is developed from Piestun and Miller´s DOF theory for optical systems, and is believed to be a trustworthy tool to verify other EM spatial DOF theories. The fast multipole method (FMM) is used in field calculation, and the average EM spatial DOF number in two dimensions is evaluated through Monte Carlo simulations
Keywords :
Monte Carlo methods; electromagnetic wave scattering; noise; Monte Carlo simulations; Piestun-Miller DOF theory; average EM spatial DOF number; electromagnetic degrees of freedom; fast multipole method; field calculation; noise presence; noisy multiple scattering environments; optical systems; Background noise; Eigenvalues and eigenfunctions; Electromagnetic fields; Electromagnetic interference; Electromagnetic scattering; MIMO; Optical noise; Optical scattering; Virtual reality; Working environment noise;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1711265
