提取准确的最佳发射极化是提高目标回波功率的有效方法。研究了目标回波功率与雷达发射波极化的内在规律,指出目标回波功率与发射波极化满足余弦关系,在此基础上,提出了一种提取最佳发射极化的新方法;仿真结果表明,存在干扰时,现有方法提取的发射极化将偏离真实值,而该方法仍能准确提取最佳发射极化。说明了该最佳发射极化提取新方法具有可行性和优越性。

Extracting the optimal emission polarization was an effective method to improve the target echo power. The inherent law of the target echo power and the polarization mode of the incident wave was studied and the cosine relation between them was found. A new method for extracting the optimal emission polarization was proposed on this basis. The results showed that the existing method extracted the wrong value, while the new method could still accurately extract the optimal emission polarization when interference existed. The feasibility and superiority of the new method was proved.