Abstract
Cross polarization jamming technique is used to induce angular error in monopulse radar. Amplitude comparison monopulse radar is capable of measuring angle in two directions within a single pulse by comparing amplitude levels acquired from four sub beams' signals. The polarization of the waves attained by the receive antenna significantly effects the measurement capability of monopulse radar. In this paper, we analyze the relationship between the ratio of jammer antenna’s cross polarization to copolarization and the angular error occuring in angular tracking of monopulse radar caused by the jamming operation. The minimum ratio satisfying the efficient angular jamming is determined after simulations. The dependency of that ratio to the radar receive antenna’s polarization purity and transmit antenna’s beamwidth is presented.
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