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针对相控阵雷达发射的脉冲信号基本脉冲参数变化复杂和脉间参数进行分选难度较大的问题,首先,文中提出一种样本脉冲的描述方法,能够对雷达脉冲信号的脉内调制域变化规律进行描述;然后,结合相控阵雷达的脉内变化特点,提出脉内不变特征的概念,对相控阵雷达的脉内调制特征进行表征;最后,基于样本脉冲的描述方法,将脉内不变特征信息与样本脉冲相结合,实现相控阵雷达信号脉冲序列的提取,并通过计算机仿真实验验证了算法的有效性和合理性。
In order to solve the problem that the basic pulse parameters of the pulse signal transmitted by the phased array radar are complex and the parameters of the pulse are difficult to be sorted, firstly, a description method of the sample pulse is proposed, which can change the intra-pulse modulation domain of the radar pulse signal Then the concept of pulse invariant features is proposed based on the characteristics of intra-pulse changes of phased array radar. The pulse modulation characteristics of phased array radar are characterized. Finally, based on the description of sample pulse, The internal invariant feature information is combined with the sample pulse to extract the pulse sequence of the phased array radar signal. The effectiveness and rationality of the algorithm are verified by computer simulation.