Degree of Polarization at Simultaneous Transmit: Theoretical Aspects

We consider weather radar measurements at simultaneous transmission and simultaneous reception of horizontal and vertical polarizations and show that the degree of polarization at simultaneous transmit (<i>p</i><sub>s</sub>) is related to differential reflectivity and copolar correlation coefficient at simultaneous transmit (namely, <i>Z</i><sub>DR</sub><i>s</i> and ρ<sub>hy</sub><i>s</i>). We evaluate the potential of degree of polarization at simultaneous transmit for weather radar applications. Ultimately, we explore the consequences of adjusting the transmit polarization state of dual-polarization weather radars to circular polarization.

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