The Application of Phase-Inversion Symmetric Method in the Frequency, Time and Space Domain
Because the correlation coefficient of noise between the adjacent channels is greater than 0.The Phase-Inversion Symmetric Method (PISM) can be used to eliminate noise and get larger SNR. The adjacent channels include adjacent frequency band, adjacent time buttress and adjacent space. This paper introduces the use of PISM in the frequency, time and space domain.
Dongye Sun, Wen-Pei Sung and Ran Chen
Y. Z. Xiao et al., "The Application of Phase-Inversion Symmetric Method in the Frequency, Time and Space Domain", Applied Mechanics and Materials, Vols. 121-126, pp. 2951-2955, 2012