Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering
The problem of factoring positive operators into an "outer" factor and its adjoint has been studied, and its application to the theory of non-stationary random processes is discussed. This problem is an extension of the classical one of factoring positive matrix-valued functions defined on the unit circle of the complex plane into similar factors. © 1971.
Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering
Mario Blaum, John L. Fan, et al.
IEEE International Symposium on Information Theory - Proceedings
Hang-Yip Liu, Steffen Schulze, et al.
Proceedings of SPIE - The International Society for Optical Engineering
J. LaRue, C. Ting
Proceedings of SPIE 1989