Abstract
Dual orthogonal polarization is a method of optimal conservation of frequency spectrum which has received researchers’ attention. The orthogonal polarization, however, is often subjected to the amount of discrimination obtainable in the dual channels. Investigation has shown that apart from the shape of falling dust particles, microwave cross polarization occurs because of dust particles alignment. This paper investigates and computes dust particle alignment which are inputs to cross polarization discrimination. Relevant forces influencing the particle alignment such as inertial torques and turbulence shear have also been calculated. The result shows how the forces affect the particle alignment, even as the torques dominating the alignment of certain dust particle sizes have also been established.