In this paper, we proposed a metamaterial polarization transformer which exhibits linear dichroism and linear conversion dichroism simultaneously. Through simulation and experiment studies in the microwave regime, it was found that only cross-polarization transmissions of x-polarized waves and co-polarization transmissions of y-polarized waves are allowed in the designed structures. As a result, the proposed metamaterials can transform any polarizations into y-polarizations with signal-to-noise ratios over 20 dB and transmissions over 0.6.

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The target system for aerial defense artillery .has been widely used in the shooting training in aerial defense war. Since the performance of the target system has strong influence on the precision of the aerial defense shooting in the training process, the target system has been developed rapidly during the past decade. A novel target system has been proposed in this paper, the shooting principle is also put forward with some innovations and reasonable modification in the design process. In the system design part, the basic performance factors have been brought forward, including some necessary technical indicators and optimized design specification. Through the shooting test under the target system, a perfect performance has been obtained through observer glass experiments. The experiment results have strongly validated the rationalization and the reliability of the designed novel target system for aerial defense artillery.