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The comparative efficiency analysis of two ways of multiplexing based on minimum and maximum selection methods has been carried out. It has been shown that minimum selection method is less effective than the maximum one for independent channels. Minimum selection method approaches efficiency of the maximum selection one when considering interchannel desired signal correlation. However this consideration implies the efficiency decrease of maximum selection method, while improving the efficiency of minimum selection one.

A study exploiting dual-polarimetric X-band synthetic aperture radar (SAR) data to observe oil at sea is undertaken for the first time. The polarimetric model exploits the interchannel correlation between the like polarized channels. Accordingly, two parameters related to the interchannel correlation, namely, the amplitude coherence and the copolarized phase difference (CPD) standard deviation, are accounted for, and their performances, with respect to sea oil slick observation, are carefully discussed. Single-look Slant range Complex dual-polarized TerraSAR-X SAR data, in which both certified oil slicks and weak-damping look-alikes are present, are used to verify the efficiency of the proposed approaches. Results show the advantage of the CPD approach and the effectiveness of TerraSAR-X dual-polarized products for such application. [ABSTRACT FROM PUBLISHER]

We report the design of limited sections of polarization-mode dispersion and polarization-dependent loss (PMD-PDL) emulators that lead to the lowest averaged frequency interchannel correlation in the wavelength-division-multiplexed systems. We show that emulators with the elements with the minimum PMD and PDL values at the end of the emulator setting with respect to the light propagation have the lowest averaged frequency autocorrelation in the neighboring channels, therefore, the lowest averaged frequency interchannel correlation. Both experiments and simulations are performed to confirm the design principle [ABSTRACT FROM PUBLISHER]

The coarsely discrete structure of polarization-mode dispersion (PMD) emulators can artificially correlate the PMD affecting different wavelength-division-multiplexed channels. We present a model that predicts the background autocorrelation of concatenated-section emulators with independently rotatable elements, and show how emulators with low interchannel correlation can be designed. [ABSTRACT FROM PUBLISHER]