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Controlling the polarization states of transmit waveforms can improve the performance of radar systems, especially for main lobe jamming suppression applications. In this paper, we consider the design of optimal transmit polarizations for deceptive jamming suppression in the main lobe using a game theory framework. We propose a co-located polarization multiple-input multiple-output (MIMO) radar system that combines the advantages of MIMO radar and those offered by optimally choosing the transmit polarization to improve the jamming suppression performance. In the polarization MIMO radar, polarization diversity is employed in the transmit array, and 2-D vector sensors are adopted in the receive array to separately measure the horizontal and vertical components of the received signals. Furthermore, based on the concepts and advantages of game theory, we formulate a polarization design problem for this radar system as a twoplayer zero-sum (TPZS) game between the radar and jammers. Additionally, we propose two design methods for different cases: a unilateral game for dumb jammers, and a strategic game for smart jammers. The optimal strategy and Nash equilibrium solution for two cases are presented. The simulation results demonstrate that jamming can be effectively suppressed with the proposed radar configuration and that improved jamming suppression performance can be achieved when the transmit polarization scheme is designed using the game theory approach.

In view of the problems existing in the traditional radar equipment course teaching, such as insufficient students' initiative, single teaching display means, separation of theoretical and practical teaching links, lack of practical training means and insufficient teaching feedback means, this paper studies the teaching reform of radar equipment course under the background of smart classroom. Using modern information technology and educational equipment, a radar professional smart classroom for radar equipment course teaching is proposed in this paper, and its structure and characteristics are introduced. On the basis of deepening the teaching philosophy of the course, a novel teaching mode of radar equipment course based on professional smart classroom is constructed, which has the characteristics of online and offline hybrid teaching, integration of theoretical and practical teaching, complementarity of simulation and equipment training, and combination of accurate teaching and effective improvement. Teaching practice has showed that this teaching mode can effectively solve the problems existing in radar equipment course teaching, stimulate students' learning interest and achieve better teaching effect.

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