中文摘要：

为了增强复杂电磁环境中同时收发认知电子战干扰机的作战能力,基于一般能量检测算法,提出一种改进的认知干扰机频谱感知算法,推导出该算法对作战目标信号感知的虚警概率和检测概率的理论表达式.仿真结果表明：所提频谱感知算法能够有效地降低自干扰对同时收发认知干扰接收机性能的影响,提升认知干扰机对作战目标的电磁频谱感知能力.

英文摘要：

To enhance the operational capability of simultaneous transmit and receive（ STAR ） cognitive electronic warfare （CEW ） jammer in the complex electromagnetic environment, an improved spectrum sensing scheme for cognitive jammer was proposed based on energy detection （ED）,and the detection and false alarm probabilities in closed-form for the jamming target were derived. Simulation results show that the effect of STAR cognitive jammer receiver impacted by self-interference （SI） can be reduced by the proposed spectrum sensing scheme,which improves the cognitive capability of jammer for attacking target.